12622745 has 32 divisors (see below), whose sum is σ = 17107200. Its totient is φ = 8895744.

The previous prime is 12622739. The next prime is 12622747. The reversal of 12622745 is 54722621.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12622745 - 2⁶ = 12622681 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12622747) 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 31 ways as a sum of consecutive naturals, for example, 115751 + ... + 115859.

It is an arithmetic number, because the mean of its divisors is an integer number (534600).

Almost surely, 2^12622745 is an apocalyptic number.

It is an amenable number.

12622745 is a deficient number, since it is larger than the sum of its proper divisors (4484455).

12622745 is a wasteful number, since it uses less digits than its factorization.

12622745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209.

The product of its digits is 6720, while the sum is 29.

The square root of 12622745 is about 3552.8502642245. The cubic root of 12622745 is about 232.8366111239.

The spelling of 12622745 in words is "twelve million, six hundred twenty-two thousand, seven hundred forty-five".