1631493172 has 24 divisors (see below), whose sum is σ = 2948843520. Its totient is φ = 788995680.

The previous prime is 1631493163. The next prime is 1631493211. The reversal of 1631493172 is 2713941361.

It is a congruent 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, 414558 + ... + 418474.

It is an arithmetic number, because the mean of its divisors is an integer number (122868480).

Almost surely, 2^1631493172 is an apocalyptic number.

It is an amenable number.

1631493172 is a deficient number, since it is larger than the sum of its proper divisors (1317350348).

1631493172 is a wasteful number, since it uses less digits than its factorization.

1631493172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7311 (or 7309 counting only the distinct ones).

The product of its digits is 27216, while the sum is 37.

The square root of 1631493172 is about 40391.7463351116. The cubic root of 1631493172 is about 1177.2311725923.

The spelling of 1631493172 in words is "one billion, six hundred thirty-one million, four hundred ninety-three thousand, one hundred seventy-two".