231395115 has 16 divisors (see below), whose sum is σ = 423122688. Its totient is φ = 105780576.

The previous prime is 231395093. The next prime is 231395137. The reversal of 231395115 is 511593132.

It is an interprime number because it is at equal distance from previous prime (231395093) and next prime (231395137).

It is not a de Polignac number, because 231395115 - 2⁸ = 231394859 is a prime.

It is a super-3 number, since 3×231395115³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1101777 + ... + 1101986.

It is an arithmetic number, because the mean of its divisors is an integer number (26445168).

Almost surely, 2^231395115 is an apocalyptic number.

231395115 is a deficient number, since it is larger than the sum of its proper divisors (191727573).

231395115 is a wasteful number, since it uses less digits than its factorization.

231395115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203778.

The product of its digits is 4050, while the sum is 30.

The square root of 231395115 is about 15211.6769292541. The cubic root of 231395115 is about 613.9288778332.

The spelling of 231395115 in words is "two hundred thirty-one million, three hundred ninety-five thousand, one hundred fifteen".