45115897 has 2 divisors, whose sum is σ = 45115898. Its totient is φ = 45115896.

The previous prime is 45115883. The next prime is 45115907. The reversal of 45115897 is 79851154.

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., 43309561 + 1806336 = 6581^2 + 1344^2 .

It is a cyclic number.

It is not a de Polignac number, because 45115897 - 2⁷ = 45115769 is a prime.

It is a super-2 number, since 2×45115897² = 4070888324229218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45115877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22557948 + 22557949.

It is an arithmetic number, because the mean of its divisors is an integer number (22557949).

Almost surely, 2^45115897 is an apocalyptic number.

It is an amenable number.

45115897 is a deficient number, since it is larger than the sum of its proper divisors (1).

45115897 is an equidigital number, since it uses as much as digits as its factorization.

45115897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 40.

The square root of 45115897 is about 6716.8368299371. The cubic root of 45115897 is about 355.9944266476.

The spelling of 45115897 in words is "forty-five million, one hundred fifteen thousand, eight hundred ninety-seven".