7131996 has 24 divisors (see below), whose sum is σ = 18490640. Its totient is φ = 2377296.

The previous prime is 7131989. The next prime is 7132019. The reversal of 7131996 is 6991317.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 7131996.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32911 + ... + 33126.

Almost surely, 2^7131996 is an apocalyptic number.

It is an amenable number.

7131996 is an abundant number, since it is smaller than the sum of its proper divisors (11358644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7131996 is a wasteful number, since it uses less digits than its factorization.

7131996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66050 (or 66042 counting only the distinct ones).

The product of its digits is 10206, while the sum is 36.

The square root of 7131996 is about 2670.5797123471. The cubic root of 7131996 is about 192.4880163451.

The spelling of 7131996 in words is "seven million, one hundred thirty-one thousand, nine hundred ninety-six".