45445013 has 2 divisors, whose sum is σ = 45445014. Its totient is φ = 45445012.

The previous prime is 45445003. The next prime is 45445021. The reversal of 45445013 is 31054454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37920964 + 7524049 = 6158^2 + 2743^2 .

It is a cyclic number.

It is not a de Polignac number, because 45445013 - 2¹⁸ = 45182869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45445003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22722506 + 22722507.

It is an arithmetic number, because the mean of its divisors is an integer number (22722507).

Almost surely, 2^45445013 is an apocalyptic number.

It is an amenable number.

45445013 is a deficient number, since it is larger than the sum of its proper divisors (1).

45445013 is an equidigital number, since it uses as much as digits as its factorization.

45445013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 45445013 is about 6741.2916418146. The cubic root of 45445013 is about 356.8579782255.

Adding to 45445013 its reverse (31054454), we get a palindrome (76499467).

The spelling of 45445013 in words is "forty-five million, four hundred forty-five thousand, thirteen".