230803521 has 32 divisors (see below), whose sum is σ = 342131328. Its totient is φ = 137479680.

The previous prime is 230803501. The next prime is 230803537. The reversal of 230803521 is 125308032.

It is not a de Polignac number, because 230803521 - 2⁹ = 230803009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 230803491 and 230803500.

It is not an unprimeable number, because it can be changed into a prime (230803501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 442741 + ... + 443261.

It is an arithmetic number, because the mean of its divisors is an integer number (10691604).

Almost surely, 2^230803521 is an apocalyptic number.

It is an amenable number.

230803521 is a deficient number, since it is larger than the sum of its proper divisors (111327807).

230803521 is a wasteful number, since it uses less digits than its factorization.

230803521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 230803521 is about 15192.2190939968. The cubic root of 230803521 is about 613.4052329528.

The spelling of 230803521 in words is "two hundred thirty million, eight hundred three thousand, five hundred twenty-one".