45515738 has 8 divisors (see below), whose sum is σ = 68317140. Its totient is φ = 22743360.

The previous prime is 45515737. The next prime is 45515741. The reversal of 45515738 is 83751554.

It can be written as a sum of positive squares in 2 ways, for example, as 35485849 + 10029889 = 5957^2 + 3167^2 .

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

It is not an unprimeable number, because it can be changed into a prime (45515731) 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, 2783 + ... + 9938.

Almost surely, 2^45515738 is an apocalyptic number.

45515738 is a deficient number, since it is larger than the sum of its proper divisors (22801402).

45515738 is a wasteful number, since it uses less digits than its factorization.

45515738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14512.

The product of its digits is 84000, while the sum is 38.

The square root of 45515738 is about 6746.5352589311. The cubic root of 45515738 is about 357.0430054875.

The spelling of 45515738 in words is "forty-five million, five hundred fifteen thousand, seven hundred thirty-eight".