45469509 has 8 divisors (see below), whose sum is σ = 64192320. Its totient is φ = 28529856.

The previous prime is 45469507. The next prime is 45469513. The reversal of 45469509 is 90596454.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45469509 - 2¹ = 45469507 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45469507) 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, 445729 + ... + 445830.

It is an arithmetic number, because the mean of its divisors is an integer number (8024040).

Almost surely, 2^45469509 is an apocalyptic number.

It is an amenable number.

45469509 is a deficient number, since it is larger than the sum of its proper divisors (18722811).

45469509 is a wasteful number, since it uses less digits than its factorization.

45469509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891579.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 45469509 is about 6743.1082595492. The cubic root of 45469509 is about 356.9220851706.

The spelling of 45469509 in words is "forty-five million, four hundred sixty-nine thousand, five hundred nine".