45073665 has 80 divisors (see below), whose sum is σ = 99525888. Its totient is φ = 19004544.

The previous prime is 45073663. The next prime is 45073667. The reversal of 45073665 is 56637054.

It is an interprime number because it is at equal distance from previous prime (45073663) and next prime (45073667).

It is not a de Polignac number, because 45073665 - 2¹ = 45073663 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45073661) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 36244 + ... + 37466.

Almost surely, 2^45073665 is an apocalyptic number.

45073665 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45073665 is an abundant number, since it is smaller than the sum of its proper divisors (54452223).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45073665 is a wasteful number, since it uses less digits than its factorization.

45073665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260 (or 1251 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 45073665 is about 6713.6923522008. The cubic root of 45073665 is about 355.8833124493.

The spelling of 45073665 in words is "forty-five million, seventy-three thousand, six hundred sixty-five".