45399073 has 2 divisors, whose sum is σ = 45399074. Its totient is φ = 45399072.

The previous prime is 45399059. The next prime is 45399077. The reversal of 45399073 is 37099354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28654609 + 16744464 = 5353^2 + 4092^2 .

It is a cyclic number.

It is not a de Polignac number, because 45399073 - 2⁵ = 45399041 is a prime.

It is a super-2 number, since 2×45399073² = 4122151658518658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45399077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22699536 + 22699537.

It is an arithmetic number, because the mean of its divisors is an integer number (22699537).

Almost surely, 2^45399073 is an apocalyptic number.

It is an amenable number.

45399073 is a deficient number, since it is larger than the sum of its proper divisors (1).

45399073 is an equidigital number, since it uses as much as digits as its factorization.

45399073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 40.

The square root of 45399073 is about 6737.8834213720. The cubic root of 45399073 is about 356.7376893919.

The spelling of 45399073 in words is "forty-five million, three hundred ninety-nine thousand, seventy-three".