7137992 has 8 divisors (see below), whose sum is σ = 13383750. Its totient is φ = 3568992.

The previous prime is 7137989. The next prime is 7138009. The reversal of 7137992 is 2997317.

It can be written as a sum of positive squares in only one way, i.e., 4268356 + 2869636 = 2066^2 + 1694^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 446117 + ... + 446132.

Almost surely, 2^7137992 is an apocalyptic number.

It is an amenable number.

7137992 is a deficient number, since it is larger than the sum of its proper divisors (6245758).

7137992 is a wasteful number, since it uses less digits than its factorization.

7137992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892255 (or 892251 counting only the distinct ones).

The product of its digits is 23814, while the sum is 38.

The square root of 7137992 is about 2671.7020791997. The cubic root of 7137992 is about 192.5419439720.

The spelling of 7137992 in words is "seven million, one hundred thirty-seven thousand, nine hundred ninety-two".