231077369 has 2 divisors, whose sum is σ = 231077370. Its totient is φ = 231077368.

The previous prime is 231077359. The next prime is 231077387. The reversal of 231077369 is 963770132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229219600 + 1857769 = 15140^2 + 1363^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231077369 is a prime.

It is a super-2 number, since 2×231077369² = 106793500927924322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (231077309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115538684 + 115538685.

It is an arithmetic number, because the mean of its divisors is an integer number (115538685).

Almost surely, 2^231077369 is an apocalyptic number.

It is an amenable number.

231077369 is a deficient number, since it is larger than the sum of its proper divisors (1).

231077369 is an equidigital number, since it uses as much as digits as its factorization.

231077369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 38.

The square root of 231077369 is about 15201.2291937198. The cubic root of 231077369 is about 613.6477385024.

The spelling of 231077369 in words is "two hundred thirty-one million, seventy-seven thousand, three hundred sixty-nine".