12394505 has 16 divisors (see below), whose sum is σ = 15410304. Its totient is φ = 9563520.

The previous prime is 12394483. The next prime is 12394549. The reversal of 12394505 is 50549321.

It is not a de Polignac number, because 12394505 - 2¹⁸ = 12132361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20822 + ... + 21408.

It is an arithmetic number, because the mean of its divisors is an integer number (963144).

Almost surely, 2^12394505 is an apocalyptic number.

It is an amenable number.

12394505 is a deficient number, since it is larger than the sum of its proper divisors (3015799).

12394505 is a wasteful number, since it uses less digits than its factorization.

12394505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 12394505 is about 3520.5830483032. The cubic root of 12394505 is about 231.4247104363.

The spelling of 12394505 in words is "twelve million, three hundred ninety-four thousand, five hundred five".