13220170 has 32 divisors (see below), whose sum is σ = 25038720. Its totient is φ = 5016000.

The previous prime is 13220131. The next prime is 13220177. The reversal of 13220170 is 7102231.

It is a happy number.

13220170 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13220177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52545 + ... + 52795.

It is an arithmetic number, because the mean of its divisors is an integer number (782460).

Almost surely, 2^13220170 is an apocalyptic number.

13220170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13220170 is a deficient number, since it is larger than the sum of its proper divisors (11818550).

13220170 is a wasteful number, since it uses less digits than its factorization.

13220170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 13220170 is about 3635.9551702407. The cubic root of 13220170 is about 236.4534635717.

It can be divided in two parts, 132 and 20170, that added together give a palindrome (20302).

The spelling of 13220170 in words is "thirteen million, two hundred twenty thousand, one hundred seventy".