45125473 has 4 divisors (see below), whose sum is σ = 45190548. Its totient is φ = 45060400.

The previous prime is 45125453. The next prime is 45125477. The reversal of 45125473 is 37452154.

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 37601424 + 7524049 = 6132^2 + 2743^2 .

It is a cyclic number.

It is not a de Polignac number, because 45125473 - 2⁵ = 45125441 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45125477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31486 + ... + 32887.

It is an arithmetic number, because the mean of its divisors is an integer number (11297637).

Almost surely, 2^45125473 is an apocalyptic number.

It is an amenable number.

45125473 is a deficient number, since it is larger than the sum of its proper divisors (65075).

45125473 is an equidigital number, since it uses as much as digits as its factorization.

45125473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65074.

The product of its digits is 16800, while the sum is 31.

The square root of 45125473 is about 6717.5496276544. The cubic root of 45125473 is about 356.0196118683.

The spelling of 45125473 in words is "forty-five million, one hundred twenty-five thousand, four hundred seventy-three".