45470813 has 2 divisors, whose sum is σ = 45470814. Its totient is φ = 45470812.

The previous prime is 45470807. The next prime is 45470863. The reversal of 45470813 is 31807454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37478884 + 7991929 = 6122^2 + 2827^2 .

It is a cyclic number.

It is not a de Polignac number, because 45470813 - 2⁶ = 45470749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45470813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45470863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22735406 + 22735407.

It is an arithmetic number, because the mean of its divisors is an integer number (22735407).

Almost surely, 2^45470813 is an apocalyptic number.

It is an amenable number.

45470813 is a deficient number, since it is larger than the sum of its proper divisors (1).

45470813 is an equidigital number, since it uses as much as digits as its factorization.

45470813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 45470813 is about 6743.2049501702. The cubic root of 45470813 is about 356.9254971417.

The spelling of 45470813 in words is "forty-five million, four hundred seventy thousand, eight hundred thirteen".