230515531 has 8 divisors (see below), whose sum is σ = 234044240. Its totient is φ = 226996992.

The previous prime is 230515511. The next prime is 230515567. The reversal of 230515531 is 135515032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 230515531 - 2²³ = 222126923 is a prime.

It is a super-2 number, since 2×230515531² = 106274820064423922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230515496 and 230515505.

It is not an unprimeable number, because it can be changed into a prime (230515501) 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 7 ways as a sum of consecutive naturals, for example, 51811 + ... + 56083.

It is an arithmetic number, because the mean of its divisors is an integer number (29255530).

Almost surely, 2^230515531 is an apocalyptic number.

230515531 is a deficient number, since it is larger than the sum of its proper divisors (3528709).

230515531 is an equidigital number, since it uses as much as digits as its factorization.

230515531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5085.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 230515531 is about 15182.7379283185. The cubic root of 230515531 is about 613.1499969581.

It can be divided in two parts, 23051 and 5531, that added together give a palindrome (28582).

The spelling of 230515531 in words is "two hundred thirty million, five hundred fifteen thousand, five hundred thirty-one".