45082409 has 4 divisors (see below), whose sum is σ = 45381120. Its totient is φ = 44783700.

The previous prime is 45082343. The next prime is 45082451. The reversal of 45082409 is 90428054.

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 a de Polignac number, because none of the positive numbers 2^k-45082409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45082469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149129 + ... + 149430.

It is an arithmetic number, because the mean of its divisors is an integer number (11345280).

Almost surely, 2^45082409 is an apocalyptic number.

It is an amenable number.

45082409 is a deficient number, since it is larger than the sum of its proper divisors (298711).

45082409 is a wasteful number, since it uses less digits than its factorization.

45082409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298710.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 45082409 is about 6714.3435271067. The cubic root of 45082409 is about 355.9063239830.

The spelling of 45082409 in words is "forty-five million, eighty-two thousand, four hundred nine".