45186665 has 8 divisors (see below), whose sum is σ = 55113288. Its totient is φ = 35556480.

The previous prime is 45186649. The next prime is 45186667. The reversal of 45186665 is 56668154.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 243049 + 44943616 = 493^2 + 6704^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45186665 - 2⁴ = 45186649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45186667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73772 + ... + 74381.

It is an arithmetic number, because the mean of its divisors is an integer number (6889161).

Almost surely, 2^45186665 is an apocalyptic number.

It is an amenable number.

45186665 is a deficient number, since it is larger than the sum of its proper divisors (9926623).

45186665 is a wasteful number, since it uses less digits than its factorization.

45186665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148219.

The product of its digits is 172800, while the sum is 41.

The square root of 45186665 is about 6722.1027216192. The cubic root of 45186665 is about 356.1804649348.

The spelling of 45186665 in words is "forty-five million, one hundred eighty-six thousand, six hundred sixty-five".