45881745 has 32 divisors (see below), whose sum is σ = 90354432. Its totient is φ = 19360512.

The previous prime is 45881723. The next prime is 45881779. The reversal of 45881745 is 54718854.

It is not a de Polignac number, because 45881745 - 2⁷ = 45881617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45881697 and 45881706.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15442 + ... + 18171.

It is an arithmetic number, because the mean of its divisors is an integer number (2823576).

Almost surely, 2^45881745 is an apocalyptic number.

It is an amenable number.

45881745 is a deficient number, since it is larger than the sum of its proper divisors (44472687).

45881745 is a wasteful number, since it uses less digits than its factorization.

45881745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33641.

The product of its digits is 179200, while the sum is 42.

The square root of 45881745 is about 6773.6064987568. The cubic root of 45881745 is about 357.9974849755.

The spelling of 45881745 in words is "forty-five million, eight hundred eighty-one thousand, seven hundred forty-five".