230782565 has 32 divisors (see below), whose sum is σ = 320223456. Its totient is φ = 158146560.

The previous prime is 230782561. The next prime is 230782567. The reversal of 230782565 is 565287032.

It can be written as a sum of positive squares in 16 ways, for example, as 43256929 + 187525636 = 6577^2 + 13694^2 .

It is not a de Polignac number, because 230782565 - 2² = 230782561 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230782561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79235 + ... + 82095.

It is an arithmetic number, because the mean of its divisors is an integer number (10006983).

Almost surely, 2^230782565 is an apocalyptic number.

It is an amenable number.

230782565 is a deficient number, since it is larger than the sum of its proper divisors (89440891).

230782565 is a wasteful number, since it uses less digits than its factorization.

230782565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2969.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 230782565 is about 15191.5293831793. The cubic root of 230782565 is about 613.3866675094.

The spelling of 230782565 in words is "two hundred thirty million, seven hundred eighty-two thousand, five hundred sixty-five".