230231977 has 2 divisors, whose sum is σ = 230231978. Its totient is φ = 230231976.

The previous prime is 230231951. The next prime is 230232029. The reversal of 230231977 is 779132032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149303961 + 80928016 = 12219^2 + 8996^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230231977 is a prime.

It is not a weakly prime, because it can be changed into another prime (230231927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115115988 + 115115989.

It is an arithmetic number, because the mean of its divisors is an integer number (115115989).

Almost surely, 2^230231977 is an apocalyptic number.

It is an amenable number.

230231977 is a deficient number, since it is larger than the sum of its proper divisors (1).

230231977 is an equidigital number, since it uses as much as digits as its factorization.

230231977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 230231977 is about 15173.3970158300. The cubic root of 230231977 is about 612.8984846625.

The spelling of 230231977 in words is "two hundred thirty million, two hundred thirty-one thousand, nine hundred seventy-seven".