72119131 has 6 divisors (see below), whose sum is σ = 83893740. Its totient is φ = 61816356.

The previous prime is 72119119. The next prime is 72119147. The reversal of 72119131 is 13191127.

It is not a de Polignac number, because 72119131 - 2¹³ = 72110939 is a prime.

It is a super-2 number, since 2×72119131² = 10402338112390322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72119096 and 72119105.

It is not an unprimeable number, because it can be changed into a prime (72119101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 735861 + ... + 735958.

It is an arithmetic number, because the mean of its divisors is an integer number (13982290).

Almost surely, 2^72119131 is an apocalyptic number.

72119131 is a deficient number, since it is larger than the sum of its proper divisors (11774609).

72119131 is a wasteful number, since it uses less digits than its factorization.

72119131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471833 (or 1471826 counting only the distinct ones).

The product of its digits is 378, while the sum is 25.

The square root of 72119131 is about 8492.2983343733. The cubic root of 72119131 is about 416.2460849070.

The spelling of 72119131 in words is "seventy-two million, one hundred nineteen thousand, one hundred thirty-one".