45018215 has 16 divisors (see below), whose sum is σ = 59252256. Its totient is φ = 32563200.

The previous prime is 45018209. The next prime is 45018251. The reversal of 45018215 is 51281054.

It is not a de Polignac number, because 45018215 - 2¹⁰ = 45017191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8495 + ... + 12735.

It is an arithmetic number, because the mean of its divisors is an integer number (3703266).

Almost surely, 2^45018215 is an apocalyptic number.

45018215 is a deficient number, since it is larger than the sum of its proper divisors (14234041).

45018215 is a wasteful number, since it uses less digits than its factorization.

45018215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4450.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 45018215 is about 6709.5614610793. The cubic root of 45018215 is about 355.7373156874.

Adding to 45018215 its reverse (51281054), we get a palindrome (96299269).

The spelling of 45018215 in words is "forty-five million, eighteen thousand, two hundred fifteen".