45165730 has 8 divisors (see below), whose sum is σ = 81298332. Its totient is φ = 18066288.

The previous prime is 45165713. The next prime is 45165737. The reversal of 45165730 is 3756154.

It can be written as a sum of positive squares in 2 ways, for example, as 42029289 + 3136441 = 6483^2 + 1771^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 45165692 and 45165701.

It is not an unprimeable number, because it can be changed into a prime (45165737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2258277 + ... + 2258296.

Almost surely, 2^45165730 is an apocalyptic number.

45165730 is a deficient number, since it is larger than the sum of its proper divisors (36132602).

45165730 is a wasteful number, since it uses less digits than its factorization.

45165730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4516580.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 45165730 is about 6720.5453647751. The cubic root of 45165730 is about 356.1254502538.

The spelling of 45165730 in words is "forty-five million, one hundred sixty-five thousand, seven hundred thirty".