231172275 has 24 divisors (see below), whose sum is σ = 382837104. Its totient is φ = 123088000.

The previous prime is 231172231. The next prime is 231172313. The reversal of 231172275 is 572271132.

It is not a de Polignac number, because 231172275 - 2⁷ = 231172147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50377 + ... + 54773.

It is an arithmetic number, because the mean of its divisors is an integer number (15951546).

Almost surely, 2^231172275 is an apocalyptic number.

231172275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

231172275 is a deficient number, since it is larger than the sum of its proper divisors (151664829).

231172275 is a wasteful number, since it uses less digits than its factorization.

231172275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5111 (or 5106 counting only the distinct ones).

The product of its digits is 5880, while the sum is 30.

The square root of 231172275 is about 15204.3505287138. The cubic root of 231172275 is about 613.7317376138.

The spelling of 231172275 in words is "two hundred thirty-one million, one hundred seventy-two thousand, two hundred seventy-five".