231367069 has 2 divisors, whose sum is σ = 231367070. Its totient is φ = 231367068.

The previous prime is 231367039. The next prime is 231367079. The reversal of 231367069 is 960763132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206496900 + 24870169 = 14370^2 + 4987^2 .

It is a cyclic number.

It is not a de Polignac number, because 231367069 - 2²¹ = 229269917 is a prime.

It is a super-2 number, since 2×231367069² = 107061441235301522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231367039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115683534 + 115683535.

It is an arithmetic number, because the mean of its divisors is an integer number (115683535).

Almost surely, 2^231367069 is an apocalyptic number.

It is an amenable number.

231367069 is a deficient number, since it is larger than the sum of its proper divisors (1).

231367069 is an equidigital number, since it uses as much as digits as its factorization.

231367069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 231367069 is about 15210.7550437182. The cubic root of 231367069 is about 613.9040732978.

The spelling of 231367069 in words is "two hundred thirty-one million, three hundred sixty-seven thousand, sixty-nine".