230644957 has 2 divisors, whose sum is σ = 230644958. Its totient is φ = 230644956.

The previous prime is 230644949. The next prime is 230644961. The reversal of 230644957 is 759446032.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193933476 + 36711481 = 13926^2 + 6059^2 .

It is a cyclic number.

It is not a de Polignac number, because 230644957 - 2³ = 230644949 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230644987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115322478 + 115322479.

It is an arithmetic number, because the mean of its divisors is an integer number (115322479).

Almost surely, 2^230644957 is an apocalyptic number.

It is an amenable number.

230644957 is a deficient number, since it is larger than the sum of its proper divisors (1).

230644957 is an equidigital number, since it uses as much as digits as its factorization.

230644957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 230644957 is about 15186.9996049253. Note that the first 3 decimals coincide. The cubic root of 230644957 is about 613.2647292188.

It can be divided in two parts, 23064495 and 7, that multiplied together give a triangular number (161451465 = T₁₇₉₆₉).

The spelling of 230644957 in words is "two hundred thirty million, six hundred forty-four thousand, nine hundred fifty-seven".