230647957 has 2 divisors, whose sum is σ = 230647958. Its totient is φ = 230647956.

The previous prime is 230647951. The next prime is 230647987. The reversal of 230647957 is 759746032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 226021156 + 4626801 = 15034^2 + 2151^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230647957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230647951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115323978 + 115323979.

It is an arithmetic number, because the mean of its divisors is an integer number (115323979).

Almost surely, 2^230647957 is an apocalyptic number.

It is an amenable number.

230647957 is a deficient number, since it is larger than the sum of its proper divisors (1).

230647957 is an equidigital number, since it uses as much as digits as its factorization.

230647957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 43.

The square root of 230647957 is about 15187.0983732904. The cubic root of 230647957 is about 613.2673881196.

The spelling of 230647957 in words is "two hundred thirty million, six hundred forty-seven thousand, nine hundred fifty-seven".