45023057 has 2 divisors, whose sum is σ = 45023058. Its totient is φ = 45023056.

The previous prime is 45023009. The next prime is 45023071. The reversal of 45023057 is 75032054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30514576 + 14508481 = 5524^2 + 3809^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45023057 is a prime.

It is not a weakly prime, because it can be changed into another prime (45023087) 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, 22511528 + 22511529.

It is an arithmetic number, because the mean of its divisors is an integer number (22511529).

Almost surely, 2^45023057 is an apocalyptic number.

It is an amenable number.

45023057 is a deficient number, since it is larger than the sum of its proper divisors (1).

45023057 is an equidigital number, since it uses as much as digits as its factorization.

45023057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 45023057 is about 6709.9222797287. The cubic root of 45023057 is about 355.7500691794.

The spelling of 45023057 in words is "forty-five million, twenty-three thousand, fifty-seven".