13089971 has 4 divisors (see below), whose sum is σ = 13443792. Its totient is φ = 12736152.

The previous prime is 13089959. The next prime is 13089977. The reversal of 13089971 is 17998031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17998031 = 457 ⋅39383.

It is a cyclic number.

It is not a de Polignac number, because 13089971 - 2¹⁸ = 12827827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13089977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176855 + ... + 176928.

It is an arithmetic number, because the mean of its divisors is an integer number (3360948).

Almost surely, 2^13089971 is an apocalyptic number.

13089971 is a deficient number, since it is larger than the sum of its proper divisors (353821).

13089971 is an equidigital number, since it uses as much as digits as its factorization.

13089971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353820.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 13089971 is about 3618.0064952954. The cubic root of 13089971 is about 235.6746630325.

The spelling of 13089971 in words is "thirteen million, eighty-nine thousand, nine hundred seventy-one".