230642515 has 4 divisors (see below), whose sum is σ = 276771024. Its totient is φ = 184514008.

The previous prime is 230642513. The next prime is 230642557. The reversal of 230642515 is 515246032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 230642515 - 2¹ = 230642513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230642513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23064247 + ... + 23064256.

It is an arithmetic number, because the mean of its divisors is an integer number (69192756).

Almost surely, 2^230642515 is an apocalyptic number.

230642515 is a deficient number, since it is larger than the sum of its proper divisors (46128509).

230642515 is an equidigital number, since it uses as much as digits as its factorization.

230642515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46128508.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 230642515 is about 15186.9192070018. The cubic root of 230642515 is about 613.2625648565.

Adding to 230642515 its reverse (515246032), we get a palindrome (745888547).

The spelling of 230642515 in words is "two hundred thirty million, six hundred forty-two thousand, five hundred fifteen".