231633085 has 16 divisors (see below), whose sum is σ = 302031360. Its totient is φ = 169888320.

The previous prime is 231633079. The next prime is 231633107. The reversal of 231633085 is 580336132.

It is not a de Polignac number, because 231633085 - 2⁹ = 231632573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 36382 + ... + 42271.

It is an arithmetic number, because the mean of its divisors is an integer number (18876960).

Almost surely, 2^231633085 is an apocalyptic number.

It is an amenable number.

231633085 is a deficient number, since it is larger than the sum of its proper divisors (70398275).

231633085 is a wasteful number, since it uses less digits than its factorization.

231633085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78708.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 231633085 is about 15219.4968707904. The cubic root of 231633085 is about 614.1392634343.

The spelling of 231633085 in words is "two hundred thirty-one million, six hundred thirty-three thousand, eighty-five".