115237290 has 32 divisors (see below), whose sum is σ = 316080000. Its totient is φ = 26339904.

The previous prime is 115237273. The next prime is 115237333. The reversal of 115237290 is 92732511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274165 + ... + 274584.

It is an arithmetic number, because the mean of its divisors is an integer number (9877500).

Almost surely, 2^115237290 is an apocalyptic number.

115237290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115237290 is an abundant number, since it is smaller than the sum of its proper divisors (200842710).

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

115237290 is a wasteful number, since it uses less digits than its factorization.

115237290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548766.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 115237290 is about 10734.8632967542. The cubic root of 115237290 is about 486.6286552118.

The spelling of 115237290 in words is "one hundred fifteen million, two hundred thirty-seven thousand, two hundred ninety".