231291875 has 10 divisors (see below), whose sum is σ = 289023108. Its totient is φ = 185033000.

The previous prime is 231291871. The next prime is 231291881. The reversal of 231291875 is 578192132.

It is not a de Polignac number, because 231291875 - 2² = 231291871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231291871) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 184409 + ... + 185658.

Almost surely, 2^231291875 is an apocalyptic number.

231291875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

231291875 is a deficient number, since it is larger than the sum of its proper divisors (57731233).

231291875 is an frugal number, since it uses more digits than its factorization.

231291875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370087 (or 370072 counting only the distinct ones).

The product of its digits is 30240, while the sum is 38.

The square root of 231291875 is about 15208.2831049399. The cubic root of 231291875 is about 613.8375600802.

The spelling of 231291875 in words is "two hundred thirty-one million, two hundred ninety-one thousand, eight hundred seventy-five".