13425091 has 4 divisors (see below), whose sum is σ = 13563592. Its totient is φ = 13286592.

The previous prime is 13425089. The next prime is 13425103. The reversal of 13425091 is 19052431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13425091 - 2¹ = 13425089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13425791) 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 3 ways as a sum of consecutive naturals, for example, 69105 + ... + 69298.

It is an arithmetic number, because the mean of its divisors is an integer number (3390898).

Almost surely, 2^13425091 is an apocalyptic number.

13425091 is a deficient number, since it is larger than the sum of its proper divisors (138501).

13425091 is an equidigital number, since it uses as much as digits as its factorization.

13425091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138500.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 13425091 is about 3664.0266101654. The cubic root of 13425091 is about 237.6689309671.

It can be divided in two parts, 13 and 425091, that added together give a square (425104 = 652²).

The spelling of 13425091 in words is "thirteen million, four hundred twenty-five thousand, ninety-one".