230915389 has 2 divisors, whose sum is σ = 230915390. Its totient is φ = 230915388.

The previous prime is 230915381. The next prime is 230915393. The reversal of 230915389 is 983519032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160858489 + 70056900 = 12683^2 + 8370^2 .

It is a cyclic number.

It is not a de Polignac number, because 230915389 - 2³ = 230915381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230915381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115457694 + 115457695.

It is an arithmetic number, because the mean of its divisors is an integer number (115457695).

Almost surely, 2^230915389 is an apocalyptic number.

It is an amenable number.

230915389 is a deficient number, since it is larger than the sum of its proper divisors (1).

230915389 is an equidigital number, since it uses as much as digits as its factorization.

230915389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 230915389 is about 15195.9004010950. The cubic root of 230915389 is about 613.5043205993.

The spelling of 230915389 in words is "two hundred thirty million, nine hundred fifteen thousand, three hundred eighty-nine".