115031550 has 24 divisors (see below), whose sum is σ = 285278616. Its totient is φ = 30675040.

The previous prime is 115031549. The next prime is 115031551. The reversal of 115031550 is 55130511.

It is an interprime number because it is at equal distance from previous prime (115031549) and next prime (115031551).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115031551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 383289 + ... + 383588.

It is an arithmetic number, because the mean of its divisors is an integer number (11886609).

Almost surely, 2^115031550 is an apocalyptic number.

115031550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115031550 is an abundant number, since it is smaller than the sum of its proper divisors (170247066).

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

115031550 is a wasteful number, since it uses less digits than its factorization.

115031550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766892 (or 766887 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 21.

The square root of 115031550 is about 10725.2762202192. The cubic root of 115031550 is about 486.3388803149.

The spelling of 115031550 in words is "one hundred fifteen million, thirty-one thousand, five hundred fifty".