12522665 has 8 divisors (see below), whose sum is σ = 15047808. Its totient is φ = 10004400.

The previous prime is 12522647. The next prime is 12522677. The reversal of 12522665 is 56622521.

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

It is not a de Polignac number, because 12522665 - 2²² = 8328361 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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, 4064 + ... + 6446.

It is an arithmetic number, because the mean of its divisors is an integer number (1880976).

Almost surely, 2^12522665 is an apocalyptic number.

It is an amenable number.

12522665 is a deficient number, since it is larger than the sum of its proper divisors (2525143).

12522665 is a wasteful number, since it uses less digits than its factorization.

12522665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3439.

The product of its digits is 7200, while the sum is 29.

The square root of 12522665 is about 3538.7377693183. The cubic root of 12522665 is about 232.2196258020.

The spelling of 12522665 in words is "twelve million, five hundred twenty-two thousand, six hundred sixty-five".