13121267 has 8 divisors (see below), whose sum is σ = 13857360. Its totient is φ = 12424176.

The previous prime is 13121257. The next prime is 13121279. The reversal of 13121267 is 76212131.

It is not a de Polignac number, because 13121267 - 2⁶ = 13121203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13121257) 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 7 ways as a sum of consecutive naturals, for example, 5903 + ... + 7815.

It is an arithmetic number, because the mean of its divisors is an integer number (1732170).

Almost surely, 2^13121267 is an apocalyptic number.

13121267 is a deficient number, since it is larger than the sum of its proper divisors (736093).

13121267 is an frugal number, since it uses more digits than its factorization.

13121267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970 (or 1932 counting only the distinct ones).

The product of its digits is 504, while the sum is 23.

The square root of 13121267 is about 3622.3289469622. The cubic root of 13121267 is about 235.8623335282.

Adding to 13121267 its reverse (76212131), we get a palindrome (89333398).

The spelling of 13121267 in words is "thirteen million, one hundred twenty-one thousand, two hundred sixty-seven".