7122013 has 2 divisors, whose sum is σ = 7122014. Its totient is φ = 7122012.

The previous prime is 7122007. The next prime is 7122029. The reversal of 7122013 is 3102217.

It is a happy number.

It is an a-pointer prime, because the next prime (7122029) can be obtained adding 7122013 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5212089 + 1909924 = 2283^2 + 1382^2 .

It is a cyclic number.

It is not a de Polignac number, because 7122013 - 2²¹ = 5024861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7122053) 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, 3561006 + 3561007.

It is an arithmetic number, because the mean of its divisors is an integer number (3561007).

Almost surely, 2^7122013 is an apocalyptic number.

It is an amenable number.

7122013 is a deficient number, since it is larger than the sum of its proper divisors (1).

7122013 is an equidigital number, since it uses as much as digits as its factorization.

7122013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 7122013 is about 2668.7099879905. The cubic root of 7122013 is about 192.3981628102.

The spelling of 7122013 in words is "seven million, one hundred twenty-two thousand, thirteen".