45372515 has 8 divisors (see below), whose sum is σ = 54634608. Its totient is φ = 36172960.

The previous prime is 45372469. The next prime is 45372521. The reversal of 45372515 is 51527354.

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

It is not a de Polignac number, because 45372515 - 2⁸ = 45372259 is a prime.

It is a Duffinian number.

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, 14021 + ... + 16950.

It is an arithmetic number, because the mean of its divisors is an integer number (6829326).

Almost surely, 2^45372515 is an apocalyptic number.

45372515 is a deficient number, since it is larger than the sum of its proper divisors (9262093).

45372515 is a wasteful number, since it uses less digits than its factorization.

45372515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31269.

The product of its digits is 21000, while the sum is 32.

The square root of 45372515 is about 6735.9123361279. The cubic root of 45372515 is about 356.6681131724.

Adding to 45372515 its reverse (51527354), we get a palindrome (96899869).

The spelling of 45372515 in words is "forty-five million, three hundred seventy-two thousand, five hundred fifteen".