13125091 has 12 divisors (see below), whose sum is σ = 15338928. Its totient is φ = 11197872.

The previous prime is 13125089. The next prime is 13125103. The reversal of 13125091 is 19052131.

13125091 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13125091 - 2¹ = 13125089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13125001) 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 11 ways as a sum of consecutive naturals, for example, 13090 + ... + 14056.

It is an arithmetic number, because the mean of its divisors is an integer number (1278244).

Almost surely, 2^13125091 is an apocalyptic number.

13125091 is a deficient number, since it is larger than the sum of its proper divisors (2213837).

13125091 is an equidigital number, since it uses as much as digits as its factorization.

13125091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258 (or 1251 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 13125091 is about 3622.8567457188. The cubic root of 13125091 is about 235.8852441703.

The spelling of 13125091 in words is "thirteen million, one hundred twenty-five thousand, ninety-one".