45805945 has 8 divisors (see below), whose sum is σ = 55030536. Its totient is φ = 36602496.

The previous prime is 45805943. The next prime is 45805961. The reversal of 45805945 is 54950854.

It can be written as a sum of positive squares in 4 ways, for example, as 16418704 + 29387241 = 4052^2 + 5421^2 .

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 45805945 - 2¹ = 45805943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45805898 and 45805907.

It is not an unprimeable number, because it can be changed into a prime (45805943) 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, 42 + ... + 9571.

It is an arithmetic number, because the mean of its divisors is an integer number (6878817).

Almost surely, 2^45805945 is an apocalyptic number.

It is an amenable number.

45805945 is a deficient number, since it is larger than the sum of its proper divisors (9224591).

45805945 is an equidigital number, since it uses as much as digits as its factorization.

45805945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10571.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 45805945 is about 6768.0089391194. The cubic root of 45805945 is about 357.8002302957.

The spelling of 45805945 in words is "forty-five million, eight hundred five thousand, nine hundred forty-five".