231026915 has 24 divisors (see below), whose sum is σ = 324248832. Its totient is φ = 157557120.

The previous prime is 231026899. The next prime is 231026933. The reversal of 231026915 is 519620132.

231026915 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231026915 - 2⁴ = 231026899 is a prime.

It is a Duffinian number.

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, 44327 + ... + 49263.

It is an arithmetic number, because the mean of its divisors is an integer number (13510368).

Almost surely, 2^231026915 is an apocalyptic number.

231026915 is a deficient number, since it is larger than the sum of its proper divisors (93221917).

231026915 is a wasteful number, since it uses less digits than its factorization.

231026915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5147 (or 5140 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 231026915 is about 15199.5695662739. The cubic root of 231026915 is about 613.6030734669.

The spelling of 231026915 in words is "two hundred thirty-one million, twenty-six thousand, nine hundred fifteen".