45257869 has 2 divisors, whose sum is σ = 45257870. Its totient is φ = 45257868.

The previous prime is 45257857. The next prime is 45257873. The reversal of 45257869 is 96875254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44555625 + 702244 = 6675^2 + 838^2 .

It is a cyclic number.

It is not a de Polignac number, because 45257869 - 2⁵ = 45257837 is a prime.

It is a super-2 number, since 2×45257869² = 4096549412842322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45257369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22628934 + 22628935.

It is an arithmetic number, because the mean of its divisors is an integer number (22628935).

Almost surely, 2^45257869 is an apocalyptic number.

It is an amenable number.

45257869 is a deficient number, since it is larger than the sum of its proper divisors (1).

45257869 is an equidigital number, since it uses as much as digits as its factorization.

45257869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 46.

The square root of 45257869 is about 6727.3968962742. The cubic root of 45257869 is about 356.3674534645.

The spelling of 45257869 in words is "forty-five million, two hundred fifty-seven thousand, eight hundred sixty-nine".