231228265 has 16 divisors (see below), whose sum is σ = 280627200. Its totient is φ = 182891520.

The previous prime is 231228259. The next prime is 231228293. The reversal of 231228265 is 562822132.

It is not a de Polignac number, because 231228265 - 2¹¹ = 231226217 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284710 + ... + 285520.

It is an arithmetic number, because the mean of its divisors is an integer number (17539200).

Almost surely, 2^231228265 is an apocalyptic number.

It is an amenable number.

231228265 is a deficient number, since it is larger than the sum of its proper divisors (49398935).

231228265 is a wasteful number, since it uses less digits than its factorization.

231228265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392.

The product of its digits is 11520, while the sum is 31.

The square root of 231228265 is about 15206.1916665548. The cubic root of 231228265 is about 613.7812822894.

The spelling of 231228265 in words is "two hundred thirty-one million, two hundred twenty-eight thousand, two hundred sixty-five".