7139992 has 16 divisors (see below), whose sum is σ = 13550040. Its totient is φ = 3526656.

The previous prime is 7139971. The next prime is 7139999. The reversal of 7139992 is 2999317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7139999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4713 + ... + 6040.

Almost surely, 2^7139992 is an apocalyptic number.

It is an amenable number.

7139992 is a deficient number, since it is larger than the sum of its proper divisors (6410048).

7139992 is a wasteful number, since it uses less digits than its factorization.

7139992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10842 (or 10838 counting only the distinct ones).

The product of its digits is 30618, while the sum is 40.

The square root of 7139992 is about 2672.0763462147. The cubic root of 7139992 is about 192.5599251226.

The spelling of 7139992 in words is "seven million, one hundred thirty-nine thousand, nine hundred ninety-two".