45279509 has 8 divisors (see below), whose sum is σ = 49530720. Its totient is φ = 41050800.

The previous prime is 45279467. The next prime is 45279523. The reversal of 45279509 is 90597254.

45279509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 45279509 - 2²⁴ = 28502293 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 (45273509) 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 7 ways as a sum of consecutive naturals, for example, 1262 + ... + 9599.

It is an arithmetic number, because the mean of its divisors is an integer number (6191340).

Almost surely, 2^45279509 is an apocalyptic number.

It is an amenable number.

45279509 is a deficient number, since it is larger than the sum of its proper divisors (4251211).

45279509 is a wasteful number, since it uses less digits than its factorization.

45279509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11251.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 45279509 is about 6729.0050527548. The cubic root of 45279509 is about 356.4242433154.

The spelling of 45279509 in words is "forty-five million, two hundred seventy-nine thousand, five hundred nine".