231493473 has 12 divisors (see below), whose sum is σ = 351978640. Its totient is φ = 146206296.

The previous prime is 231493469. The next prime is 231493481. The reversal of 231493473 is 374394132.

It is not a de Polignac number, because 231493473 - 2² = 231493469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (231493373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 676711 + ... + 677052.

Almost surely, 2^231493473 is an apocalyptic number.

It is an amenable number.

231493473 is a deficient number, since it is larger than the sum of its proper divisors (120485167).

231493473 is a wasteful number, since it uses less digits than its factorization.

231493473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353788 (or 1353785 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 231493473 is about 15214.9095626625. The cubic root of 231493473 is about 614.0158521020.

The spelling of 231493473 in words is "two hundred thirty-one million, four hundred ninety-three thousand, four hundred seventy-three".