115515036 has 144 divisors (see below), whose sum is σ = 369480384. Its totient is φ = 29611008.

The previous prime is 115515019. The next prime is 115515053. The reversal of 115515036 is 630515511.

115515036 is a `hidden beast` number, since 1 + 155 + 1 + 503 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (115515019) and next prime (115515053).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 120736 + ... + 121688.

It is an arithmetic number, because the mean of its divisors is an integer number (2565836).

Almost surely, 2^115515036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115515036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184740192).

115515036 is an abundant number, since it is smaller than the sum of its proper divisors (253965348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115515036 is a wasteful number, since it uses less digits than its factorization.

115515036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020 (or 1015 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The square root of 115515036 is about 10747.7921453664. The cubic root of 115515036 is about 487.0193005209.

The spelling of 115515036 in words is "one hundred fifteen million, five hundred fifteen thousand, thirty-six".