115515653 has 4 divisors (see below), whose sum is σ = 126017088. Its totient is φ = 105014220.

The previous prime is 115515643. The next prime is 115515661. The reversal of 115515653 is 356515511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 115515653 - 2¹⁴ = 115499269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115515623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5250701 + ... + 5250722.

It is an arithmetic number, because the mean of its divisors is an integer number (31504272).

Almost surely, 2^115515653 is an apocalyptic number.

It is an amenable number.

115515653 is a deficient number, since it is larger than the sum of its proper divisors (10501435).

115515653 is a wasteful number, since it uses less digits than its factorization.

115515653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10501434.

The product of its digits is 11250, while the sum is 32.

The square root of 115515653 is about 10747.8208488977. The cubic root of 115515653 is about 487.0201676241.

The spelling of 115515653 in words is "one hundred fifteen million, five hundred fifteen thousand, six hundred fifty-three".