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133550121 = 3231935509
BaseRepresentation
bin1111111010111…
…01000000101001
3100022022001022210
413331131000221
5233142100441
621130235333
73211104645
oct775350051
9308261283
10133550121
1169427201
1238885b49
132188c653
1413a45c25
15bad0616
hex7f5d029

133550121 has 8 divisors (see below), whose sum is σ = 185808960. Its totient is φ = 85162352.

The previous prime is 133550119. The next prime is 133550141. The reversal of 133550121 is 121055331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133550121 - 21 = 133550119 is a prime.

It is a super-2 number, since 2×1335501212 = 35671269638229282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133550101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 967686 + ... + 967823.

It is an arithmetic number, because the mean of its divisors is an integer number (23226120).

Almost surely, 2133550121 is an apocalyptic number.

It is an amenable number.

133550121 is a deficient number, since it is larger than the sum of its proper divisors (52258839).

133550121 is a wasteful number, since it uses less digits than its factorization.

133550121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935535.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 133550121 is about 11556.3887525472. The cubic root of 133550121 is about 511.1496823951.

The spelling of 133550121 in words is "one hundred thirty-three million, five hundred fifty thousand, one hundred twenty-one".

Divisors: 1 3 23 69 1935509 5806527 44516707 133550121