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121032135 = 32572231723
BaseRepresentation
bin1110011011011…
…00110111000111
322102202001212200
413031230313013
5221441012020
620002045543
72666520240
oct715546707
9272661780
10121032135
1162357264
12346498b3
131c0c8963
1412107cc7
15a95b590
hex736cdc7

121032135 has 48 divisors (see below), whose sum is σ = 240973824. Its totient is φ = 55048896.

The previous prime is 121032133. The next prime is 121032161. The reversal of 121032135 is 531230121.

It is not a de Polignac number, because 121032135 - 21 = 121032133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121032133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69384 + ... + 71106.

It is an arithmetic number, because the mean of its divisors is an integer number (5020288).

Almost surely, 2121032135 is an apocalyptic number.

121032135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121032135 is a deficient number, since it is larger than the sum of its proper divisors (119941689).

121032135 is a wasteful number, since it uses less digits than its factorization.

121032135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964 (or 1961 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 121032135 is about 11001.4605848496. The cubic root of 121032135 is about 494.6525262674.

Adding to 121032135 its reverse (531230121), we get a palindrome (652262256).

The spelling of 121032135 in words is "one hundred twenty-one million, thirty-two thousand, one hundred thirty-five".

Divisors: 1 3 5 7 9 15 21 35 45 63 105 223 315 669 1115 1561 1723 2007 3345 4683 5169 7805 8615 10035 12061 14049 15507 23415 25845 36183 60305 70245 77535 108549 180915 384229 542745 1152687 1921145 2689603 3458061 5763435 8068809 13448015 17290305 24206427 40344045 121032135