45018207 has 16 divisors (see below), whose sum is σ = 71824480. Its totient is φ = 27703296.

The previous prime is 45018187. The next prime is 45018209. The reversal of 45018207 is 70281054.

45018207 is a `hidden beast` number, since 450 + 1 + 8 + 207 = 666.

It is not a de Polignac number, because 45018207 - 2⁶ = 45018143 is a prime.

It is a super-2 number, since 2×45018207² = 4053277922989698, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45018209) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 63778 + ... + 64479.

It is an arithmetic number, because the mean of its divisors is an integer number (4489030).

Almost surely, 2^45018207 is an apocalyptic number.

45018207 is a deficient number, since it is larger than the sum of its proper divisors (26806273).

45018207 is a wasteful number, since it uses less digits than its factorization.

45018207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128279 (or 128273 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 45018207 is about 6709.5608649151. The cubic root of 45018207 is about 355.7372946152.

The spelling of 45018207 in words is "forty-five million, eighteen thousand, two hundred seven".