231900785 has 8 divisors (see below), whose sum is σ = 280406016. Its totient is φ = 184103920.

The previous prime is 231900749. The next prime is 231900827. The reversal of 231900785 is 587009132.

231900785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 231900785 - 2¹² = 231896689 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176369 + ... + 177678.

It is an arithmetic number, because the mean of its divisors is an integer number (35050752).

Almost surely, 2^231900785 is an apocalyptic number.

It is an amenable number.

231900785 is a deficient number, since it is larger than the sum of its proper divisors (48505231).

231900785 is a wasteful number, since it uses less digits than its factorization.

231900785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354183.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 231900785 is about 15228.2889715161. The cubic root of 231900785 is about 614.3757607187.

The spelling of 231900785 in words is "two hundred thirty-one million, nine hundred thousand, seven hundred eighty-five".