13220169 has 8 divisors (see below), whose sum is σ = 18663840. Its totient is φ = 8294976.

The previous prime is 13220131. The next prime is 13220177. The reversal of 13220169 is 96102231.

13220169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13220169 - 2⁷ = 13220041 is a prime.

It is a super-2 number, since 2×13220169² = 349545736777122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13220069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129559 + ... + 129660.

It is an arithmetic number, because the mean of its divisors is an integer number (2332980).

Almost surely, 2^13220169 is an apocalyptic number.

It is an amenable number.

13220169 is a deficient number, since it is larger than the sum of its proper divisors (5443671).

13220169 is a wasteful number, since it uses less digits than its factorization.

13220169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259239.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 13220169 is about 3635.9550327252. The cubic root of 13220169 is about 236.4534576098.

It can be divided in two parts, 132 and 20169, that added together give a triangular number (20301 = T₂₀₁).

The spelling of 13220169 in words is "thirteen million, two hundred twenty thousand, one hundred sixty-nine".