45157945 has 16 divisors (see below), whose sum is σ = 63606528. Its totient is φ = 30127680.

The previous prime is 45157943. The next prime is 45157949. The reversal of 45157945 is 54975154.

It is not a de Polignac number, because 45157945 - 2¹ = 45157943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45157898 and 45157907.

It is not an unprimeable number, because it can be changed into a prime (45157943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16141 + ... + 18730.

It is an arithmetic number, because the mean of its divisors is an integer number (3975408).

Almost surely, 2^45157945 is an apocalyptic number.

It is an amenable number.

45157945 is a deficient number, since it is larger than the sum of its proper divisors (18448583).

45157945 is a wasteful number, since it uses less digits than its factorization.

45157945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34920.

The product of its digits is 126000, while the sum is 40.

The square root of 45157945 is about 6719.9661457481. The cubic root of 45157945 is about 356.1049878668.

The spelling of 45157945 in words is "forty-five million, one hundred fifty-seven thousand, nine hundred forty-five".