13195520 has 108 divisors (see below), whose sum is σ = 34786836. Its totient is φ = 4792320.

The previous prime is 13195517. The next prime is 13195529. The reversal of 13195520 is 2559131.

It can be written as a sum of positive squares in 6 ways, for example, as 6310144 + 6885376 = 2512^2 + 2624^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 13195520.

It is not an unprimeable number, because it can be changed into a prime (13195529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216290 + ... + 216350.

Almost surely, 2^13195520 is an apocalyptic number.

13195520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13195520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17393418).

13195520 is an abundant number, since it is smaller than the sum of its proper divisors (21591316).

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

13195520 is an equidigital number, since it uses as much as digits as its factorization.

13195520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 13195520 is about 3632.5638328872. The cubic root of 13195520 is about 236.3064103886.

The spelling of 13195520 in words is "thirteen million, one hundred ninety-five thousand, five hundred twenty".