45072615 has 32 divisors (see below), whose sum is σ = 82874880. Its totient is φ = 20490624.

The previous prime is 45072613. The next prime is 45072619. The reversal of 45072615 is 51627054.

It is not a de Polignac number, because 45072615 - 2¹ = 45072613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45072611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19596 + ... + 21774.

It is an arithmetic number, because the mean of its divisors is an integer number (2589840).

Almost surely, 2^45072615 is an apocalyptic number.

45072615 is a deficient number, since it is larger than the sum of its proper divisors (37802265).

45072615 is a wasteful number, since it uses less digits than its factorization.

45072615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2391.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 45072615 is about 6713.6141533454. The cubic root of 45072615 is about 355.8805489703.

Adding to 45072615 its reverse (51627054), we get a palindrome (96699669).

The spelling of 45072615 in words is "forty-five million, seventy-two thousand, six hundred fifteen".