231893485 has 16 divisors (see below), whose sum is σ = 287764992. Its totient is φ = 179208000.

The previous prime is 231893477. The next prime is 231893489. The reversal of 231893485 is 584398132.

It is not a de Polignac number, because 231893485 - 2³ = 231893477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231893489) 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 15 ways as a sum of consecutive naturals, for example, 121035 + ... + 122935.

It is an arithmetic number, because the mean of its divisors is an integer number (17985312).

Almost surely, 2^231893485 is an apocalyptic number.

It is an amenable number.

231893485 is a deficient number, since it is larger than the sum of its proper divisors (55871507).

231893485 is a wasteful number, since it uses less digits than its factorization.

231893485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2724.

The product of its digits is 207360, while the sum is 43.

The square root of 231893485 is about 15228.0492841335. The cubic root of 231893485 is about 614.3693140104.

The spelling of 231893485 in words is "two hundred thirty-one million, eight hundred ninety-three thousand, four hundred eighty-five".