13075720 has 128 divisors (see below), whose sum is σ = 37013760. Its totient is φ = 4055040.

The previous prime is 13075709. The next prime is 13075739. The reversal of 13075720 is 2757031.

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195127 + ... + 195193.

It is an arithmetic number, because the mean of its divisors is an integer number (289170).

Almost surely, 2^13075720 is an apocalyptic number.

13075720 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 13075720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18506880).

13075720 is an abundant number, since it is smaller than the sum of its proper divisors (23938040).

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

13075720 is a wasteful number, since it uses less digits than its factorization.

13075720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 13075720 is about 3616.0365042405. The cubic root of 13075720 is about 235.5891059499.

The spelling of 13075720 in words is "thirteen million, seventy-five thousand, seven hundred twenty".