7081213 has 2 divisors, whose sum is σ = 7081214. Its totient is φ = 7081212.

The previous prime is 7081201. The next prime is 7081241. The reversal of 7081213 is 3121807.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4656964 + 2424249 = 2158^2 + 1557^2 .

It is a cyclic number.

It is not a de Polignac number, because 7081213 - 2⁵ = 7081181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7081253) 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, 3540606 + 3540607.

It is an arithmetic number, because the mean of its divisors is an integer number (3540607).

Almost surely, 2^7081213 is an apocalyptic number.

It is an amenable number.

7081213 is a deficient number, since it is larger than the sum of its proper divisors (1).

7081213 is an equidigital number, since it uses as much as digits as its factorization.

7081213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 7081213 is about 2661.0548660259. The cubic root of 7081213 is about 192.0300607591.

The spelling of 7081213 in words is "seven million, eighty-one thousand, two hundred thirteen".