45912609 has 16 divisors (see below), whose sum is σ = 68458240. Its totient is φ = 30410640.

The previous prime is 45912589. The next prime is 45912613. The reversal of 45912609 is 90621954.

45912609 is a `hidden beast` number, since 4 + 591 + 2 + 60 + 9 = 666.

It is not a de Polignac number, because 45912609 - 2²⁰ = 44864033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45912649) 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 15 ways as a sum of consecutive naturals, for example, 1177 + ... + 9654.

It is an arithmetic number, because the mean of its divisors is an integer number (4278640).

Almost surely, 2^45912609 is an apocalyptic number.

It is an amenable number.

45912609 is a deficient number, since it is larger than the sum of its proper divisors (22545631).

45912609 is a wasteful number, since it uses less digits than its factorization.

45912609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10997 (or 10991 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 45912609 is about 6775.8843703239. The cubic root of 45912609 is about 358.0777402619.

The spelling of 45912609 in words is "forty-five million, nine hundred twelve thousand, six hundred nine".