231375617 has 16 divisors (see below), whose sum is σ = 256830912. Its totient is φ = 206680320.

The previous prime is 231375583. The next prime is 231375619. The reversal of 231375617 is 716573132.

It is not a de Polignac number, because 231375617 - 2⁶ = 231375553 is a prime.

It is a super-2 number, since 2×231375617² = 107069352284261378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231375619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374693 + ... + 375309.

It is an arithmetic number, because the mean of its divisors is an integer number (16051932).

Almost surely, 2^231375617 is an apocalyptic number.

It is an amenable number.

231375617 is a deficient number, since it is larger than the sum of its proper divisors (25455295).

231375617 is a wasteful number, since it uses less digits than its factorization.

231375617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168.

The product of its digits is 26460, while the sum is 35.

The square root of 231375617 is about 15211.0360265171. The cubic root of 231375617 is about 613.9116335604.

The spelling of 231375617 in words is "two hundred thirty-one million, three hundred seventy-five thousand, six hundred seventeen".