7125816 has 16 divisors (see below), whose sum is σ = 17814600. Its totient is φ = 2375264.

The previous prime is 7125809. The next prime is 7125821. The reversal of 7125816 is 6185217.

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 3 ways as a sum of consecutive naturals, for example, 148431 + ... + 148478.

Almost surely, 2^7125816 is an apocalyptic number.

It is an amenable number.

7125816 is an abundant number, since it is smaller than the sum of its proper divisors (10688784).

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

7125816 is a wasteful number, since it uses less digits than its factorization.

7125816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296918 (or 296914 counting only the distinct ones).

The product of its digits is 3360, while the sum is 30.

The square root of 7125816 is about 2669.4224094362. The cubic root of 7125816 is about 192.4324021944.

The spelling of 7125816 in words is "seven million, one hundred twenty-five thousand, eight hundred sixteen".