231960761 has 2 divisors, whose sum is σ = 231960762. Its totient is φ = 231960760.

The previous prime is 231960737. The next prime is 231960769. The reversal of 231960761 is 167069132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122235136 + 109725625 = 11056^2 + 10475^2 .

It is a cyclic number.

It is not a de Polignac number, because 231960761 - 2¹⁸ = 231698617 is a prime.

It is not a weakly prime, because it can be changed into another prime (231960769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115980380 + 115980381.

It is an arithmetic number, because the mean of its divisors is an integer number (115980381).

Almost surely, 2^231960761 is an apocalyptic number.

It is an amenable number.

231960761 is a deficient number, since it is larger than the sum of its proper divisors (1).

231960761 is an equidigital number, since it uses as much as digits as its factorization.

231960761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 231960761 is about 15230.2580739789. The cubic root of 231960761 is about 614.4287210460.

The spelling of 231960761 in words is "two hundred thirty-one million, nine hundred sixty thousand, seven hundred sixty-one".