115212530 has 32 divisors (see below), whose sum is σ = 214004160. Its totient is φ = 44637120.

The previous prime is 115212527. The next prime is 115212533. The reversal of 115212530 is 35212511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (115212527) and next prime (115212533).

It is not an unprimeable number, because it can be changed into a prime (115212533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39461 + ... + 42279.

It is an arithmetic number, because the mean of its divisors is an integer number (6687630).

Almost surely, 2^115212530 is an apocalyptic number.

115212530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115212530 is a deficient number, since it is larger than the sum of its proper divisors (98791630).

115212530 is a wasteful number, since it uses less digits than its factorization.

115212530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2954.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 115212530 is about 10733.7099830394. The cubic root of 115212530 is about 486.5938002079.

The spelling of 115212530 in words is "one hundred fifteen million, two hundred twelve thousand, five hundred thirty".