45809609 has 8 divisors (see below), whose sum is σ = 46492320. Its totient is φ = 45130176.

The previous prime is 45809593. The next prime is 45809633. The reversal of 45809609 is 90690854.

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

It is a cyclic number.

It is not a de Polignac number, because 45809609 - 2⁴ = 45809593 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 (45809639) 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, 44897 + ... + 45905.

It is an arithmetic number, because the mean of its divisors is an integer number (5811540).

Almost surely, 2^45809609 is an apocalyptic number.

It is an amenable number.

45809609 is a deficient number, since it is larger than the sum of its proper divisors (682711).

45809609 is a wasteful number, since it uses less digits than its factorization.

45809609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 45809609 is about 6768.2796189283. The cubic root of 45809609 is about 357.8097701425.

The spelling of 45809609 in words is "forty-five million, eight hundred nine thousand, six hundred nine".