45257165 has 4 divisors (see below), whose sum is σ = 54308604. Its totient is φ = 36205728.

The previous prime is 45257159. The next prime is 45257203. The reversal of 45257165 is 56175254.

45257165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23251684 + 22005481 = 4822^2 + 4691^2 .

It is a cyclic number.

It is not a de Polignac number, because 45257165 - 2¹² = 45253069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4525712 + ... + 4525721.

It is an arithmetic number, because the mean of its divisors is an integer number (13577151).

Almost surely, 2^45257165 is an apocalyptic number.

It is an amenable number.

45257165 is a deficient number, since it is larger than the sum of its proper divisors (9051439).

45257165 is an equidigital number, since it uses as much as digits as its factorization.

45257165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9051438.

The product of its digits is 42000, while the sum is 35.

The square root of 45257165 is about 6727.3445727122. The cubic root of 45257165 is about 356.3656056533.

The spelling of 45257165 in words is "forty-five million, two hundred fifty-seven thousand, one hundred sixty-five".