115551530 has 16 divisors (see below), whose sum is σ = 213066504. Its totient is φ = 45093120.

The previous prime is 115551523. The next prime is 115551551. The reversal of 115551530 is 35155511.

It can be written as a sum of positive squares in 4 ways, for example, as 52809289 + 62742241 = 7267^2 + 7921^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 115551530.

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, 140507 + ... + 141326.

Almost surely, 2^115551530 is an apocalyptic number.

115551530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115551530 is a deficient number, since it is larger than the sum of its proper divisors (97514974).

115551530 is a wasteful number, since it uses less digits than its factorization.

115551530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281881.

The product of its (nonzero) digits is 1875, while the sum is 26.

The square root of 115551530 is about 10749.4897553326. The cubic root of 115551530 is about 487.0705821885.

The spelling of 115551530 in words is "one hundred fifteen million, five hundred fifty-one thousand, five hundred thirty".