7125818 has 8 divisors (see below), whose sum is σ = 12215712. Its totient is φ = 3053916.

The previous prime is 7125809. The next prime is 7125821. The reversal of 7125818 is 8185217.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254480 + ... + 254507.

It is an arithmetic number, because the mean of its divisors is an integer number (1526964).

Almost surely, 2^7125818 is an apocalyptic number.

7125818 is a deficient number, since it is larger than the sum of its proper divisors (5089894).

7125818 is a wasteful number, since it uses less digits than its factorization.

7125818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508996.

The product of its digits is 4480, while the sum is 32.

The square root of 7125818 is about 2669.4227840490. The cubic root of 7125818 is about 192.4324201977.

The spelling of 7125818 in words is "seven million, one hundred twenty-five thousand, eight hundred eighteen".