72119881 has 8 divisors (see below), whose sum is σ = 75654144. Its totient is φ = 68618880.

The previous prime is 72119867. The next prime is 72119903. The reversal of 72119881 is 18891127.

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

It is a cyclic number.

It is not a de Polignac number, because 72119881 - 2⁷ = 72119753 is a prime.

It is a super-2 number, since 2×72119881² = 10402554470908322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72119881.

It is not an unprimeable number, because it can be changed into a prime (72119821) 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, 3816 + ... + 12601.

It is an arithmetic number, because the mean of its divisors is an integer number (9456768).

Almost surely, 2^72119881 is an apocalyptic number.

It is an amenable number.

72119881 is a deficient number, since it is larger than the sum of its proper divisors (3534263).

72119881 is a wasteful number, since it uses less digits than its factorization.

72119881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16631.

The product of its digits is 8064, while the sum is 37.

The square root of 72119881 is about 8492.3424919159. The cubic root of 72119881 is about 416.2475278134.

It can be divided in two parts, 721 and 19881, that added together give a palindrome (20602).

The spelling of 72119881 in words is "seventy-two million, one hundred nineteen thousand, eight hundred eighty-one".