115213250 has 32 divisors (see below), whose sum is σ = 228374640. Its totient is φ = 43372800.

The previous prime is 115213247. The next prime is 115213277. The reversal of 115213250 is 52312511.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 5822569 + 109390681 = 2413^2 + 10459^2 .

It is a Curzon number.

It is an unprimeable number.

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, 9305 + ... + 17804.

Almost surely, 2^115213250 is an apocalyptic number.

115213250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115213250 is a deficient number, since it is larger than the sum of its proper divisors (113161390).

115213250 is a wasteful number, since it uses less digits than its factorization.

115213250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27143 (or 27133 counting only the distinct ones).

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

The square root of 115213250 is about 10733.7435221827. The cubic root of 115213250 is about 486.5948138327.

Adding to 115213250 its reverse (52312511), we get a palindrome (167525761).

The spelling of 115213250 in words is "one hundred fifteen million, two hundred thirteen thousand, two hundred fifty".