45913209 has 8 divisors (see below), whose sum is σ = 64818720. Its totient is φ = 28808256.

The previous prime is 45913199. The next prime is 45913223. The reversal of 45913209 is 90231954.

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

It is not a de Polignac number, because 45913209 - 2¹¹ = 45911161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45913209.

It is not an unprimeable number, because it can be changed into a prime (45913249) 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, 450079 + ... + 450180.

It is an arithmetic number, because the mean of its divisors is an integer number (8102340).

Almost surely, 2^45913209 is an apocalyptic number.

It is an amenable number.

45913209 is a deficient number, since it is larger than the sum of its proper divisors (18905511).

45913209 is a wasteful number, since it uses less digits than its factorization.

45913209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900279.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 45913209 is about 6775.9286448427. The cubic root of 45913209 is about 358.0793000782.

The spelling of 45913209 in words is "forty-five million, nine hundred thirteen thousand, two hundred nine".