45144557 has 2 divisors, whose sum is σ = 45144558. Its totient is φ = 45144556.

The previous prime is 45144529. The next prime is 45144577. The reversal of 45144557 is 75544154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36228361 + 8916196 = 6019^2 + 2986^2 .

It is a cyclic number.

It is not a de Polignac number, because 45144557 - 2⁶ = 45144493 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45144527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22572278 + 22572279.

It is an arithmetic number, because the mean of its divisors is an integer number (22572279).

Almost surely, 2^45144557 is an apocalyptic number.

It is an amenable number.

45144557 is a deficient number, since it is larger than the sum of its proper divisors (1).

45144557 is an equidigital number, since it uses as much as digits as its factorization.

45144557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56000, while the sum is 35.

The square root of 45144557 is about 6718.9699359351. The cubic root of 45144557 is about 356.0697928434.

The spelling of 45144557 in words is "forty-five million, one hundred forty-four thousand, five hundred fifty-seven".