45516215 has 16 divisors (see below), whose sum is σ = 56948736. Its totient is φ = 34884000.

The previous prime is 45516203. The next prime is 45516217. The reversal of 45516215 is 51261554.

It is a happy number.

It is not a de Polignac number, because 45516215 - 2⁶ = 45516151 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45516217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14540 + ... + 17390.

It is an arithmetic number, because the mean of its divisors is an integer number (3559296).

Almost surely, 2^45516215 is an apocalyptic number.

45516215 is a deficient number, since it is larger than the sum of its proper divisors (11432521).

45516215 is a wasteful number, since it uses less digits than its factorization.

45516215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2990.

The product of its digits is 6000, while the sum is 29.

The square root of 45516215 is about 6746.5706103175. The cubic root of 45516215 is about 357.0442527405.

Adding to 45516215 its reverse (51261554), we get a palindrome (96777769).

The spelling of 45516215 in words is "forty-five million, five hundred sixteen thousand, two hundred fifteen".