230833021 has 4 divisors (see below), whose sum is σ = 244411452. Its totient is φ = 217254592.

The previous prime is 230833013. The next prime is 230833049. The reversal of 230833021 is 120338032.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 213568996 + 17264025 = 14614^2 + 4155^2 .

It is a cyclic number.

It is not a de Polignac number, because 230833021 - 2³ = 230833013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230832983 and 230833001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230833621) 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, 6789190 + ... + 6789223.

It is an arithmetic number, because the mean of its divisors is an integer number (61102863).

Almost surely, 2^230833021 is an apocalyptic number.

It is an amenable number.

230833021 is a deficient number, since it is larger than the sum of its proper divisors (13578431).

230833021 is a wasteful number, since it uses less digits than its factorization.

230833021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13578430.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 230833021 is about 15193.1899547133. The cubic root of 230833021 is about 613.4313658348.

The spelling of 230833021 in words is "two hundred thirty million, eight hundred thirty-three thousand, twenty-one".