230887513 has 2 divisors, whose sum is σ = 230887514. Its totient is φ = 230887512.

The previous prime is 230887499. The next prime is 230887529. The reversal of 230887513 is 315788032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227014489 + 3873024 = 15067^2 + 1968^2 .

It is a cyclic number.

It is not a de Polignac number, because 230887513 - 2¹³ = 230879321 is a prime.

It is equal to p_12688714 and since 230887513 and 12688714 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (230887213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115443756 + 115443757.

It is an arithmetic number, because the mean of its divisors is an integer number (115443757).

Almost surely, 2^230887513 is an apocalyptic number.

It is an amenable number.

230887513 is a deficient number, since it is larger than the sum of its proper divisors (1).

230887513 is an equidigital number, since it uses as much as digits as its factorization.

230887513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 230887513 is about 15194.9831523434. The cubic root of 230887513 is about 613.4796322856.

The spelling of 230887513 in words is "two hundred thirty million, eight hundred eighty-seven thousand, five hundred thirteen".