231369845 has 16 divisors (see below), whose sum is σ = 320277888. Its totient is φ = 157168320.

The previous prime is 231369823. The next prime is 231369863. The reversal of 231369845 is 548963132.

It is not a de Polignac number, because 231369845 - 2⁶ = 231369781 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27146 + ... + 34635.

It is an arithmetic number, because the mean of its divisors is an integer number (20017368).

Almost surely, 2^231369845 is an apocalyptic number.

It is an amenable number.

231369845 is a deficient number, since it is larger than the sum of its proper divisors (88908043).

231369845 is a wasteful number, since it uses less digits than its factorization.

231369845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61900.

The product of its digits is 155520, while the sum is 41.

The square root of 231369845 is about 15210.8462946675. The cubic root of 231369845 is about 613.9065285462.

The spelling of 231369845 in words is "two hundred thirty-one million, three hundred sixty-nine thousand, eight hundred forty-five".