7513213 has 2 divisors, whose sum is σ = 7513214. Its totient is φ = 7513212.

The previous prime is 7513199. The next prime is 7513223. The reversal of 7513213 is 3123157.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6340324 + 1172889 = 2518^2 + 1083^2 .

It is a cyclic number.

It is not a de Polignac number, because 7513213 - 2¹³ = 7505021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7513223) by changing a digit.

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 as a sum of consecutive naturals, namely, 3756606 + 3756607.

It is an arithmetic number, because the mean of its divisors is an integer number (3756607).

Almost surely, 2^7513213 is an apocalyptic number.

It is an amenable number.

7513213 is a deficient number, since it is larger than the sum of its proper divisors (1).

7513213 is an equidigital number, since it uses as much as digits as its factorization.

7513213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 630, while the sum is 22.

The square root of 7513213 is about 2741.0240786976. The cubic root of 7513213 is about 195.8582638348.

The spelling of 7513213 in words is "seven million, five hundred thirteen thousand, two hundred thirteen".