231163567 has 2 divisors, whose sum is σ = 231163568. Its totient is φ = 231163566.

The previous prime is 231163523. The next prime is 231163579. The reversal of 231163567 is 765361132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231163567 - 2¹¹ = 231161519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231163067) 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 as a sum of consecutive naturals, namely, 115581783 + 115581784.

It is an arithmetic number, because the mean of its divisors is an integer number (115581784).

Almost surely, 2^231163567 is an apocalyptic number.

231163567 is a deficient number, since it is larger than the sum of its proper divisors (1).

231163567 is an equidigital number, since it uses as much as digits as its factorization.

231163567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 34.

The square root of 231163567 is about 15204.0641606118. The cubic root of 231163567 is about 613.7240313219.

The spelling of 231163567 in words is "two hundred thirty-one million, one hundred sixty-three thousand, five hundred sixty-seven".