13161889 has 12 divisors (see below), whose sum is σ = 15006000. Its totient is φ = 11507184.

The previous prime is 13161881. The next prime is 13161917. The reversal of 13161889 is 98816131.

It is not a de Polignac number, because 13161889 - 2³ = 13161881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13161881) 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, 1162 + ... + 5260.

It is an arithmetic number, because the mean of its divisors is an integer number (1250500).

Almost surely, 2^13161889 is an apocalyptic number.

13161889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13161889 is a deficient number, since it is larger than the sum of its proper divisors (1844111).

13161889 is a wasteful number, since it uses less digits than its factorization.

13161889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4144 (or 4131 counting only the distinct ones).

The product of its digits is 10368, while the sum is 37.

The square root of 13161889 is about 3627.9317799540. The cubic root of 13161889 is about 236.1054840622.

The spelling of 13161889 in words is "thirteen million, one hundred sixty-one thousand, eight hundred eighty-nine".