45037215 has 40 divisors (see below), whose sum is σ = 82101888. Its totient is φ = 23613120.

The previous prime is 45037193. The next prime is 45037231. The reversal of 45037215 is 51273054.

It is a happy number.

It is not a de Polignac number, because 45037215 - 2⁵ = 45037183 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23794 + ... + 25616.

Almost surely, 2^45037215 is an apocalyptic number.

45037215 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

45037215 is a deficient number, since it is larger than the sum of its proper divisors (37064673).

45037215 is a wasteful number, since it uses less digits than its factorization.

45037215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901 (or 1892 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 45037215 is about 6710.9772015706. The cubic root of 45037215 is about 355.7873551239.

The spelling of 45037215 in words is "forty-five million, thirty-seven thousand, two hundred fifteen".