115213556 has 24 divisors (see below), whose sum is σ = 213876936. Its totient is φ = 54118400.

The previous prime is 115213547. The next prime is 115213561. The reversal of 115213556 is 655312511.

It can be written as a sum of positive squares in 4 ways, for example, as 87123556 + 28090000 = 9334^2 + 5300^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46460 + ... + 48876.

It is an arithmetic number, because the mean of its divisors is an integer number (8911539).

Almost surely, 2^115213556 is an apocalyptic number.

It is an amenable number.

115213556 is a deficient number, since it is larger than the sum of its proper divisors (98663380).

115213556 is a wasteful number, since it uses less digits than its factorization.

115213556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3139 (or 3137 counting only the distinct ones).

The product of its digits is 4500, while the sum is 29.

The square root of 115213556 is about 10733.7577762869. The cubic root of 115213556 is about 486.5952446219.

The spelling of 115213556 in words is "one hundred fifteen million, two hundred thirteen thousand, five hundred fifty-six".