7125213 has 8 divisors (see below), whose sum is σ = 9828000. Its totient is φ = 4586288.

The previous prime is 7125203. The next prime is 7125263. The reversal of 7125213 is 3125217.

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

It is a cyclic number.

It is not a de Polignac number, because 7125213 - 2⁴ = 7125197 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7125213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7125203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40863 + ... + 41036.

It is an arithmetic number, because the mean of its divisors is an integer number (1228500).

Almost surely, 2^7125213 is an apocalyptic number.

It is an amenable number.

7125213 is a deficient number, since it is larger than the sum of its proper divisors (2702787).

7125213 is a wasteful number, since it uses less digits than its factorization.

7125213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81931.

The product of its digits is 420, while the sum is 21.

The square root of 7125213 is about 2669.3094612652. The cubic root of 7125213 is about 192.4269740435.

The spelling of 7125213 in words is "seven million, one hundred twenty-five thousand, two hundred thirteen".