231612450 has 24 divisors (see below), whose sum is σ = 574399248. Its totient is φ = 61763280.

The previous prime is 231612419. The next prime is 231612463. The reversal of 231612450 is 54216132.

It is a self number, because there is not a number n which added to its sum of digits gives 231612450.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 771892 + ... + 772191.

It is an arithmetic number, because the mean of its divisors is an integer number (23933302).

Almost surely, 2^231612450 is an apocalyptic number.

231612450 is an abundant number, since it is smaller than the sum of its proper divisors (342786798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231612450 is a wasteful number, since it uses less digits than its factorization.

231612450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544098 (or 1544093 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 231612450 is about 15218.8189423490. The cubic root of 231612450 is about 614.1210260568.

Adding to 231612450 its reverse (54216132), we get a palindrome (285828582).

The spelling of 231612450 in words is "two hundred thirty-one million, six hundred twelve thousand, four hundred fifty".