45307897 has 2 divisors, whose sum is σ = 45307898. Its totient is φ = 45307896.

The previous prime is 45307891. The next prime is 45307901. The reversal of 45307897 is 79870354.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44903401 + 404496 = 6701^2 + 636^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45307897 is a prime.

It is not a weakly prime, because it can be changed into another prime (45307891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22653948 + 22653949.

It is an arithmetic number, because the mean of its divisors is an integer number (22653949).

Almost surely, 2^45307897 is an apocalyptic number.

It is an amenable number.

45307897 is a deficient number, since it is larger than the sum of its proper divisors (1).

45307897 is an equidigital number, since it uses as much as digits as its factorization.

45307897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 45307897 is about 6731.1140979781. The cubic root of 45307897 is about 356.4987145118.

The spelling of 45307897 in words is "forty-five million, three hundred seven thousand, eight hundred ninety-seven".