231144922 has 8 divisors (see below), whose sum is σ = 346786272. Its totient is φ = 115549500.

The previous prime is 231144857. The next prime is 231144923. The reversal of 231144922 is 229441132.

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

It is not an unprimeable number, because it can be changed into a prime (231144923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7147 + ... + 22657.

It is an arithmetic number, because the mean of its divisors is an integer number (43348284).

Almost surely, 2^231144922 is an apocalyptic number.

231144922 is a deficient number, since it is larger than the sum of its proper divisors (115641350).

231144922 is a wasteful number, since it uses less digits than its factorization.

231144922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22964.

The product of its digits is 3456, while the sum is 28.

The square root of 231144922 is about 15203.4509898246. The cubic root of 231144922 is about 613.7075304629.

The spelling of 231144922 in words is "two hundred thirty-one million, one hundred forty-four thousand, nine hundred twenty-two".