13162720 has 24 divisors (see below), whose sum is σ = 31097304. Its totient is φ = 5265024.

The previous prime is 13162717. The next prime is 13162729. The reversal of 13162720 is 2726131.

It is a junction number, because it is equal to n+sod(n) for n = 13162691 and 13162700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13162729) 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, 40974 + ... + 41293.

It is an arithmetic number, because the mean of its divisors is an integer number (1295721).

Almost surely, 2^13162720 is an apocalyptic number.

13162720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13162720 is an abundant number, since it is smaller than the sum of its proper divisors (17934584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13162720 is an equidigital number, since it uses as much as digits as its factorization.

13162720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82282 (or 82274 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 13162720 is about 3628.0463062094. The cubic root of 13162720 is about 236.1104529419.

Adding to 13162720 its reverse (2726131), we get a palindrome (15888851).

The spelling of 13162720 in words is "thirteen million, one hundred sixty-two thousand, seven hundred twenty".