45144997 has 2 divisors, whose sum is σ = 45144998. Its totient is φ = 45144996.

The previous prime is 45144947. The next prime is 45145019. The reversal of 45144997 is 79944154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45144961 + 36 = 6719^2 + 6^2 .

It is a cyclic number.

It is not a de Polignac number, because 45144997 - 2²³ = 36756389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45144917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22572498 + 22572499.

It is an arithmetic number, because the mean of its divisors is an integer number (22572499).

Almost surely, 2^45144997 is an apocalyptic number.

It is an amenable number.

45144997 is a deficient number, since it is larger than the sum of its proper divisors (1).

45144997 is an equidigital number, since it uses as much as digits as its factorization.

45144997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The square root of 45144997 is about 6719.0026789696. The cubic root of 45144997 is about 356.0709496473.

The spelling of 45144997 in words is "forty-five million, one hundred forty-four thousand, nine hundred ninety-seven".