231263015 has 4 divisors (see below), whose sum is σ = 277515624. Its totient is φ = 185010408.

The previous prime is 231262973. The next prime is 231263027. The reversal of 231263015 is 510362132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231263015 - 2¹⁰ = 231261991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23126297 + ... + 23126306.

It is an arithmetic number, because the mean of its divisors is an integer number (69378906).

Almost surely, 2^231263015 is an apocalyptic number.

231263015 is a deficient number, since it is larger than the sum of its proper divisors (46252609).

231263015 is an equidigital number, since it uses as much as digits as its factorization.

231263015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46252608.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 231263015 is about 15207.3342502886. The cubic root of 231263015 is about 613.8120279989.

The spelling of 231263015 in words is "two hundred thirty-one million, two hundred sixty-three thousand, fifteen".