13121129 has 8 divisors (see below), whose sum is σ = 15035520. Its totient is φ = 11216736.

The previous prime is 13121117. The next prime is 13121159. The reversal of 13121129 is 92112131.

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

It is a cyclic number.

It is not a de Polignac number, because 13121129 - 2¹⁶ = 13055593 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 13121129.

It is not an unprimeable number, because it can be changed into a prime (13121159) 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 7 ways as a sum of consecutive naturals, for example, 572 + ... + 5154.

It is an arithmetic number, because the mean of its divisors is an integer number (1879440).

Almost surely, 2^13121129 is an apocalyptic number.

It is an amenable number.

13121129 is a deficient number, since it is larger than the sum of its proper divisors (1914391).

13121129 is an equidigital number, since it uses as much as digits as its factorization.

13121129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999.

The product of its digits is 108, while the sum is 20.

The square root of 13121129 is about 3622.3098983936. The cubic root of 13121129 is about 235.8615066488.

The spelling of 13121129 in words is "thirteen million, one hundred twenty-one thousand, one hundred twenty-nine".