231135575 has 24 divisors (see below), whose sum is σ = 313680816. Its totient is φ = 167552000.

The previous prime is 231135547. The next prime is 231135607. The reversal of 231135575 is 575531132.

It is not a de Polignac number, because 231135575 - 2⁸ = 231135319 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 95885 + ... + 98265.

It is an arithmetic number, because the mean of its divisors is an integer number (13070034).

Almost surely, 2^231135575 is an apocalyptic number.

231135575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

231135575 is a deficient number, since it is larger than the sum of its proper divisors (82545241).

231135575 is a wasteful number, since it uses less digits than its factorization.

231135575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755 (or 2750 counting only the distinct ones).

The product of its digits is 15750, while the sum is 32.

The square root of 231135575 is about 15203.1435894028. The cubic root of 231135575 is about 613.6992580170.

The spelling of 231135575 in words is "two hundred thirty-one million, one hundred thirty-five thousand, five hundred seventy-five".