7251213 has 8 divisors (see below), whose sum is σ = 9738400. Its totient is φ = 4799088.

The previous prime is 7251199. The next prime is 7251221. The reversal of 7251213 is 3121527.

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

It is not a de Polignac number, because 7251213 - 2⁹ = 7250701 is a prime.

It is a Duffinian number.

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 7251213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7251313) 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, 8278 + ... + 9111.

It is an arithmetic number, because the mean of its divisors is an integer number (1217300).

Almost surely, 2^7251213 is an apocalyptic number.

It is an amenable number.

7251213 is a deficient number, since it is larger than the sum of its proper divisors (2487187).

7251213 is a wasteful number, since it uses less digits than its factorization.

7251213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17531.

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

The square root of 7251213 is about 2692.8076425917. The cubic root of 7251213 is about 193.5546253912.

The spelling of 7251213 in words is "seven million, two hundred fifty-one thousand, two hundred thirteen".