45001409 has 4 divisors (see below), whose sum is σ = 46958016. Its totient is φ = 43044804.

The previous prime is 45001403. The next prime is 45001441. The reversal of 45001409 is 90410054.

It is a happy number.

45001409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45001409 - 2⁴ = 45001393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 1956583 = 45001409 / (4 + 5 + 0 + 0 + 1 + 4 + 0 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45001403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 978269 + ... + 978314.

It is an arithmetic number, because the mean of its divisors is an integer number (11739504).

Almost surely, 2^45001409 is an apocalyptic number.

It is an amenable number.

45001409 is a deficient number, since it is larger than the sum of its proper divisors (1956607).

45001409 is a wasteful number, since it uses less digits than its factorization.

45001409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956606.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 45001409 is about 6708.3089523366. The cubic root of 45001409 is about 355.6930427530.

The spelling of 45001409 in words is "forty-five million, one thousand, four hundred nine".