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121552541 = 1118161051
BaseRepresentation
bin1110011111010…
…11111010011101
322110201111201222
413033223322131
5222104140131
620021143125
73004115405
oct717537235
9273644658
10121552541
1162682250
123485aaa5
131c24b7a6
1412201805
15aa1087b
hex73ebe9d

121552541 has 8 divisors (see below), whose sum is σ = 133337568. Its totient is φ = 109890000.

The previous prime is 121552507. The next prime is 121552553. The reversal of 121552541 is 145255121.

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

It is not a de Polignac number, because 121552541 - 210 = 121551517 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121552541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121552241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28535 + ... + 32516.

It is an arithmetic number, because the mean of its divisors is an integer number (16667196).

Almost surely, 2121552541 is an apocalyptic number.

121552541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121552541 is a deficient number, since it is larger than the sum of its proper divisors (11785027).

121552541 is a wasteful number, since it uses less digits than its factorization.

121552541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61243.

The product of its digits is 2000, while the sum is 26.

The square root of 121552541 is about 11025.0868930816. The cubic root of 121552541 is about 495.3604706915.

The spelling of 121552541 in words is "one hundred twenty-one million, five hundred fifty-two thousand, five hundred forty-one".

Divisors: 1 11 181 1991 61051 671561 11050231 121552541