45418215 has 32 divisors (see below), whose sum is σ = 77469696. Its totient is φ = 22668800.

The previous prime is 45418211. The next prime is 45418249. The reversal of 45418215 is 51281454.

It is not a de Polignac number, because 45418215 - 2² = 45418211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45418211) 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, 14815 + ... + 17615.

It is an arithmetic number, because the mean of its divisors is an integer number (2420928).

Almost surely, 2^45418215 is an apocalyptic number.

45418215 is a deficient number, since it is larger than the sum of its proper divisors (32051481).

45418215 is a wasteful number, since it uses less digits than its factorization.

45418215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2879.

The product of its digits is 6400, while the sum is 30.

The square root of 45418215 is about 6739.3037474208. The cubic root of 45418215 is about 356.7878204693.

Adding to 45418215 its reverse (51281454), we get a palindrome (96699669).

The spelling of 45418215 in words is "forty-five million, four hundred eighteen thousand, two hundred fifteen".