231545330 has 8 divisors (see below), whose sum is σ = 416781612. Its totient is φ = 92618128.

The previous prime is 231545317. The next prime is 231545357. The reversal of 231545330 is 33545132.

231545330 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 228826129 + 2719201 = 15127^2 + 1649^2 .

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

It is a super-2 number, since 2×231545330² = 107226479689617800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231545330.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11577257 + ... + 11577276.

Almost surely, 2^231545330 is an apocalyptic number.

231545330 is a deficient number, since it is larger than the sum of its proper divisors (185236282).

231545330 is a wasteful number, since it uses less digits than its factorization.

231545330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23154540.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 231545330 is about 15216.6136180163. The cubic root of 231545330 is about 614.0616973726.

The spelling of 231545330 in words is "two hundred thirty-one million, five hundred forty-five thousand, three hundred thirty".