72119631 has 8 divisors (see below), whose sum is σ = 96691504. Its totient is φ = 47813760.

The previous prime is 72119603. The next prime is 72119633. The reversal of 72119631 is 13691127.

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

It is not a de Polignac number, because 72119631 - 2⁷ = 72119503 is a prime.

It is a super-2 number, since 2×72119631² = 10402482351152322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72119633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65866 + ... + 66951.

It is an arithmetic number, because the mean of its divisors is an integer number (12086438).

Almost surely, 2^72119631 is an apocalyptic number.

72119631 is a deficient number, since it is larger than the sum of its proper divisors (24571873).

72119631 is a wasteful number, since it uses less digits than its factorization.

72119631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133001.

The product of its digits is 2268, while the sum is 30.

The square root of 72119631 is about 8492.3277727605. The cubic root of 72119631 is about 416.2470468457.

The spelling of 72119631 in words is "seventy-two million, one hundred nineteen thousand, six hundred thirty-one".