13982169 has 4 divisors (see below), whose sum is σ = 18642896. Its totient is φ = 9321444.

The previous prime is 13982161. The next prime is 13982173. The reversal of 13982169 is 96128931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13982169 - 2³ = 13982161 is a prime.

It is a super-2 number, since 2×13982169² = 391002099889122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13982161) 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, 2330359 + ... + 2330364.

It is an arithmetic number, because the mean of its divisors is an integer number (4660724).

Almost surely, 2^13982169 is an apocalyptic number.

It is an amenable number.

13982169 is a deficient number, since it is larger than the sum of its proper divisors (4660727).

13982169 is an equidigital number, since it uses as much as digits as its factorization.

13982169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4660726.

The product of its digits is 23328, while the sum is 39.

The square root of 13982169 is about 3739.2738599894. The cubic root of 13982169 is about 240.9118609302.

The spelling of 13982169 in words is "thirteen million, nine hundred eighty-two thousand, one hundred sixty-nine".