73182131 has 6 divisors (see below), whose sum is σ = 80439996. Its totient is φ = 66529100.

The previous prime is 73182097. The next prime is 73182139. The reversal of 73182131 is 13128137.

It is a de Polignac number, because none of the positive numbers 2^k-73182131 is a prime.

It is a super-2 number, since 2×73182131² = 10711248595402322, 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 73182131.

It is not an unprimeable number, because it can be changed into a prime (73182139) 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, 302285 + ... + 302526.

It is an arithmetic number, because the mean of its divisors is an integer number (13406666).

Almost surely, 2^73182131 is an apocalyptic number.

73182131 is a deficient number, since it is larger than the sum of its proper divisors (7257865).

73182131 is a wasteful number, since it uses less digits than its factorization.

73182131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604833 (or 604822 counting only the distinct ones).

The product of its digits is 1008, while the sum is 26.

The square root of 73182131 is about 8554.6555161503. The cubic root of 73182131 is about 418.2812050550.

It can be divided in two parts, 7318 and 2131, that added together give a palindrome (9449).

The spelling of 73182131 in words is "seventy-three million, one hundred eighty-two thousand, one hundred thirty-one".