45817909 has 8 divisors (see below), whose sum is σ = 48388032. Its totient is φ = 43296000.

The previous prime is 45817901. The next prime is 45817921. The reversal of 45817909 is 90971854.

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 45817909 - 2³ = 45817901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45817901) 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, 10092 + ... + 13909.

It is an arithmetic number, because the mean of its divisors is an integer number (6048504).

Almost surely, 2^45817909 is an apocalyptic number.

It is an amenable number.

45817909 is a deficient number, since it is larger than the sum of its proper divisors (2570123).

45817909 is a wasteful number, since it uses less digits than its factorization.

45817909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24107.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 45817909 is about 6768.8927454939. The cubic root of 45817909 is about 357.8313787221.

The spelling of 45817909 in words is "forty-five million, eight hundred seventeen thousand, nine hundred nine".