13375591 has 4 divisors (see below), whose sum is σ = 13407784. Its totient is φ = 13343400.

The previous prime is 13375573. The next prime is 13375597. The reversal of 13375591 is 19557331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19557331 = 103 ⋅189877.

It is a cyclic number.

It is not a de Polignac number, because 13375591 - 2⁵ = 13375559 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13375597) 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 3 ways as a sum of consecutive naturals, for example, 15465 + ... + 16306.

It is an arithmetic number, because the mean of its divisors is an integer number (3351946).

Almost surely, 2^13375591 is an apocalyptic number.

13375591 is a deficient number, since it is larger than the sum of its proper divisors (32193).

13375591 is an equidigital number, since it uses as much as digits as its factorization.

13375591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32192.

The product of its digits is 14175, while the sum is 34.

The square root of 13375591 is about 3657.2655085460. The cubic root of 13375591 is about 237.3764661345.

The spelling of 13375591 in words is "thirteen million, three hundred seventy-five thousand, five hundred ninety-one".