73197131 has 12 divisors (see below), whose sum is σ = 88085520. Its totient is φ = 60575760.

The previous prime is 73197127. The next prime is 73197151. The reversal of 73197131 is 13179137.

It is not a de Polignac number, because 73197131 - 2² = 73197127 is a prime.

It is a super-2 number, since 2×73197131² = 10715639973262322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73197151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24335 + ... + 27176.

It is an arithmetic number, because the mean of its divisors is an integer number (7340460).

Almost surely, 2^73197131 is an apocalyptic number.

73197131 is a deficient number, since it is larger than the sum of its proper divisors (14888389).

73197131 is a wasteful number, since it uses less digits than its factorization.

73197131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51554 (or 51547 counting only the distinct ones).

The product of its digits is 3969, while the sum is 32.

The square root of 73197131 is about 8555.5321868368. The cubic root of 73197131 is about 418.3097811995.

The spelling of 73197131 in words is "seventy-three million, one hundred ninety-seven thousand, one hundred thirty-one".