7045813 has 2 divisors, whose sum is σ = 7045814. Its totient is φ = 7045812.

The previous prime is 7045807. The next prime is 7045823. The reversal of 7045813 is 3185407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7006609 + 39204 = 2647^2 + 198^2 .

It is a cyclic number.

It is not a de Polignac number, because 7045813 - 2⁵ = 7045781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7045823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3522906 + 3522907.

It is an arithmetic number, because the mean of its divisors is an integer number (3522907).

Almost surely, 2^7045813 is an apocalyptic number.

It is an amenable number.

7045813 is a deficient number, since it is larger than the sum of its proper divisors (1).

7045813 is an equidigital number, since it uses as much as digits as its factorization.

7045813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 7045813 is about 2654.3950346548. The cubic root of 7045813 is about 191.7095307619.

The spelling of 7045813 in words is "seven million, forty-five thousand, eight hundred thirteen".