12606505 has 8 divisors (see below), whose sum is σ = 15148224. Its totient is φ = 10071600.

The previous prime is 12606497. The next prime is 12606509. The reversal of 12606505 is 50560621.

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

It is not a de Polignac number, because 12606505 - 2³ = 12606497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12606505.

It is not an unprimeable number, because it can be changed into a prime (12606509) 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, 4300 + ... + 6610.

It is an arithmetic number, because the mean of its divisors is an integer number (1893528).

Almost surely, 2^12606505 is an apocalyptic number.

It is an amenable number.

12606505 is a deficient number, since it is larger than the sum of its proper divisors (2541719).

12606505 is a wasteful number, since it uses less digits than its factorization.

12606505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 12606505 is about 3550.5640396985. The cubic root of 12606505 is about 232.7367150146.

The spelling of 12606505 in words is "twelve million, six hundred six thousand, five hundred five".