231053565 has 16 divisors (see below), whose sum is σ = 370182528. Its totient is φ = 123062976.

The previous prime is 231053533. The next prime is 231053569. The reversal of 231053565 is 565350132.

It is not a de Polignac number, because 231053565 - 2⁵ = 231053533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231053569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1632 + ... + 21558.

It is an arithmetic number, because the mean of its divisors is an integer number (23136408).

Almost surely, 2^231053565 is an apocalyptic number.

It is an amenable number.

231053565 is a deficient number, since it is larger than the sum of its proper divisors (139128963).

231053565 is a wasteful number, since it uses less digits than its factorization.

231053565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20708.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 231053565 is about 15200.4462105558. The cubic root of 231053565 is about 613.6266665234.

The spelling of 231053565 in words is "two hundred thirty-one million, fifty-three thousand, five hundred sixty-five".