45540745 has 8 divisors (see below), whose sum is σ = 55150920. Its totient is φ = 36097920.

The previous prime is 45540731. The next prime is 45540751. The reversal of 45540745 is 54704554.

It can be written as a sum of positive squares in 4 ways, for example, as 2782224 + 42758521 = 1668^2 + 6539^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45540745 - 2⁷ = 45540617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45540745.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41236 + ... + 42325.

It is an arithmetic number, because the mean of its divisors is an integer number (6893865).

Almost surely, 2^45540745 is an apocalyptic number.

It is an amenable number.

45540745 is a deficient number, since it is larger than the sum of its proper divisors (9610175).

45540745 is a wasteful number, since it uses less digits than its factorization.

45540745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83675.

The product of its (nonzero) digits is 56000, while the sum is 34.

The square root of 45540745 is about 6748.3883261117. The cubic root of 45540745 is about 357.1083817007.

The spelling of 45540745 in words is "forty-five million, five hundred forty thousand, seven hundred forty-five".