45079945 has 16 divisors (see below), whose sum is σ = 55961280. Its totient is φ = 34841664.

The previous prime is 45079943. The next prime is 45079961. The reversal of 45079945 is 54997054.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 45079945 - 2¹ = 45079943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45079943) 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, 16486 + ... + 19024.

It is an arithmetic number, because the mean of its divisors is an integer number (3497580).

Almost surely, 2^45079945 is an apocalyptic number.

It is an amenable number.

45079945 is a deficient number, since it is larger than the sum of its proper divisors (10881335).

45079945 is a wasteful number, since it uses less digits than its factorization.

45079945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 45079945 is about 6714.1600368177. The cubic root of 45079945 is about 355.8998397897.

The spelling of 45079945 in words is "forty-five million, seventy-nine thousand, nine hundred forty-five".