7137925 has 6 divisors (see below), whose sum is σ = 8851058. Its totient is φ = 5710320.

The previous prime is 7137913. The next prime is 7137947. The reversal of 7137925 is 5297317.

It can be written as a sum of positive squares in 3 ways, for example, as 2328676 + 4809249 = 1526^2 + 2193^2 .

It is not a de Polignac number, because 7137925 - 2¹⁵ = 7105157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142734 + ... + 142783.

Almost surely, 2^7137925 is an apocalyptic number.

It is an amenable number.

7137925 is a deficient number, since it is larger than the sum of its proper divisors (1713133).

7137925 is a wasteful number, since it uses less digits than its factorization.

7137925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285527 (or 285522 counting only the distinct ones).

The product of its digits is 13230, while the sum is 34.

The square root of 7137925 is about 2671.6895403471. The cubic root of 7137925 is about 192.5413415453.

The spelling of 7137925 in words is "seven million, one hundred thirty-seven thousand, nine hundred twenty-five".