12122913 has 16 divisors (see below), whose sum is σ = 17899776. Its totient is φ = 7236240.

The previous prime is 12122879. The next prime is 12122933. The reversal of 12122913 is 31922121.

It is not a de Polignac number, because 12122913 - 2⁸ = 12122657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12122913.

It is not an unprimeable number, because it can be changed into a prime (12122933) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 531 + ... + 4952.

It is an arithmetic number, because the mean of its divisors is an integer number (1118736).

Almost surely, 2^12122913 is an apocalyptic number.

It is an amenable number.

12122913 is a deficient number, since it is larger than the sum of its proper divisors (5776863).

12122913 is a wasteful number, since it uses less digits than its factorization.

12122913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5564.

The product of its digits is 216, while the sum is 21.

The square root of 12122913 is about 3481.7973806642. The cubic root of 12122913 is about 229.7218629045.

The spelling of 12122913 in words is "twelve million, one hundred twenty-two thousand, nine hundred thirteen".