230936521 has 4 divisors (see below), whose sum is σ = 235850112. Its totient is φ = 226022932.

The previous prime is 230936479. The next prime is 230936527. The reversal of 230936521 is 125639032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 230936521 - 2⁹ = 230936009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230936527) 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 in 3 ways as a sum of consecutive naturals, for example, 2456725 + ... + 2456818.

It is an arithmetic number, because the mean of its divisors is an integer number (58962528).

Almost surely, 2^230936521 is an apocalyptic number.

It is an amenable number.

230936521 is a deficient number, since it is larger than the sum of its proper divisors (4913591).

230936521 is an equidigital number, since it uses as much as digits as its factorization.

230936521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4913590.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 230936521 is about 15196.5957043017. The cubic root of 230936521 is about 613.5230347813.

The spelling of 230936521 in words is "two hundred thirty million, nine hundred thirty-six thousand, five hundred twenty-one".