231960769 has 2 divisors, whose sum is σ = 231960770. Its totient is φ = 231960768.

The previous prime is 231960761. The next prime is 231960779. The reversal of 231960769 is 967069132.

231960769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177023025 + 54937744 = 13305^2 + 7412^2 .

It is a cyclic number.

It is not a de Polignac number, because 231960769 - 2³ = 231960761 is a prime.

It is a super-2 number, since 2×231960769² = 107611596710142722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (231960761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115980384 + 115980385.

It is an arithmetic number, because the mean of its divisors is an integer number (115980385).

Almost surely, 2^231960769 is an apocalyptic number.

It is an amenable number.

231960769 is a deficient number, since it is larger than the sum of its proper divisors (1).

231960769 is an equidigital number, since it uses as much as digits as its factorization.

231960769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 231960769 is about 15230.2583366140. The cubic root of 231960769 is about 614.4287281096.

The spelling of 231960769 in words is "two hundred thirty-one million, nine hundred sixty thousand, seven hundred sixty-nine".