45186645 has 32 divisors (see below), whose sum is σ = 82937088. Its totient is φ = 20579328.

The previous prime is 45186637. The next prime is 45186649. The reversal of 45186645 is 54668154.

It is a happy number.

It is not a de Polignac number, because 45186645 - 2³ = 45186637 is a prime.

It is a super-3 number, since 3×45186645³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45186649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34747 + ... + 36023.

It is an arithmetic number, because the mean of its divisors is an integer number (2591784).

Almost surely, 2^45186645 is an apocalyptic number.

It is an amenable number.

45186645 is a deficient number, since it is larger than the sum of its proper divisors (37750443).

45186645 is a wasteful number, since it uses less digits than its factorization.

45186645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629.

The product of its digits is 115200, while the sum is 39.

The square root of 45186645 is about 6722.1012339893. The cubic root of 45186645 is about 356.1804123853.

The spelling of 45186645 in words is "forty-five million, one hundred eighty-six thousand, six hundred forty-five".