231980275 has 6 divisors (see below), whose sum is σ = 287655572. Its totient is φ = 185584200.

The previous prime is 231980239. The next prime is 231980293. The reversal of 231980275 is 572089132.

It is a de Polignac number, because none of the positive numbers 2^k-231980275 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4639581 + ... + 4639630.

Almost surely, 2^231980275 is an apocalyptic number.

231980275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

231980275 is a deficient number, since it is larger than the sum of its proper divisors (55675297).

231980275 is an equidigital number, since it uses as much as digits as its factorization.

231980275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9279221 (or 9279216 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 231980275 is about 15230.8986931172. The cubic root of 231980275 is about 614.4459504340.

The spelling of 231980275 in words is "two hundred thirty-one million, nine hundred eighty thousand, two hundred seventy-five".