232775021 has 2 divisors, whose sum is σ = 232775022. Its totient is φ = 232775020.

The previous prime is 232775009. The next prime is 232775041. The reversal of 232775021 is 120577232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 232562500 + 212521 = 15250^2 + 461^2 .

It is a cyclic number.

It is not a de Polignac number, because 232775021 - 2¹⁴ = 232758637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232775041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116387510 + 116387511.

It is an arithmetic number, because the mean of its divisors is an integer number (116387511).

Almost surely, 2^232775021 is an apocalyptic number.

It is an amenable number.

232775021 is a deficient number, since it is larger than the sum of its proper divisors (1).

232775021 is an equidigital number, since it uses as much as digits as its factorization.

232775021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 232775021 is about 15256.9663105088. The cubic root of 232775021 is about 615.1468316650.

The spelling of 232775021 in words is "two hundred thirty-two million, seven hundred seventy-five thousand, twenty-one".