115656201 has 16 divisors (see below), whose sum is σ = 172580800. Its totient is φ = 76546944.

The previous prime is 115656199. The next prime is 115656217. The reversal of 115656201 is 102656511.

It is a happy number.

115656201 is a `hidden beast` number, since 1 + 1 + 5 + 656 + 2 + 0 + 1 = 666.

It is not a de Polignac number, because 115656201 - 2¹ = 115656199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115656241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11656 + ... + 19161.

It is an arithmetic number, because the mean of its divisors is an integer number (10786300).

Almost surely, 2^115656201 is an apocalyptic number.

It is an amenable number.

115656201 is a deficient number, since it is larger than the sum of its proper divisors (56924599).

115656201 is a wasteful number, since it uses less digits than its factorization.

115656201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30965 (or 30959 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 115656201 is about 10754.3573029726. The cubic root of 115656201 is about 487.2176068645.

It can be divided in two parts, 11565 and 6201, that added together give a triangular number (17766 = T₁₈₈).

The spelling of 115656201 in words is "one hundred fifteen million, six hundred fifty-six thousand, two hundred one".