45368009 has 4 divisors (see below), whose sum is σ = 45556500. Its totient is φ = 45179520.

The previous prime is 45368003. The next prime is 45368023. The reversal of 45368009 is 90086354.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13162384 + 32205625 = 3628^2 + 5675^2 .

It is a cyclic number.

It is not a de Polignac number, because 45368009 - 2²⁰ = 44319433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45368009.

It is not an unprimeable number, because it can be changed into a prime (45368003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93884 + ... + 94365.

It is an arithmetic number, because the mean of its divisors is an integer number (11389125).

Almost surely, 2^45368009 is an apocalyptic number.

It is an amenable number.

45368009 is a deficient number, since it is larger than the sum of its proper divisors (188491).

45368009 is a wasteful number, since it uses less digits than its factorization.

45368009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188490.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 45368009 is about 6735.5778519738. The cubic root of 45368009 is about 356.6563057325.

The spelling of 45368009 in words is "forty-five million, three hundred sixty-eight thousand, nine".