231530284 has 6 divisors (see below), whose sum is σ = 405178004. Its totient is φ = 115765140.

The previous prime is 231530281. The next prime is 231530291. The reversal of 231530284 is 482035132.

It is not an unprimeable number, because it can be changed into a prime (231530281) 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 as a sum of consecutive naturals, namely, 28941282 + ... + 28941289.

Almost surely, 2^231530284 is an apocalyptic number.

It is an amenable number.

231530284 is a deficient number, since it is larger than the sum of its proper divisors (173647720).

231530284 is a wasteful number, since it uses less digits than its factorization.

231530284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57882575 (or 57882573 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 231530284 is about 15216.1192161471. The cubic root of 231530284 is about 614.0483963451.

The spelling of 231530284 in words is "two hundred thirty-one million, five hundred thirty thousand, two hundred eighty-four".