13120726 has 8 divisors (see below), whose sum is σ = 19696464. Its totient is φ = 6555240.

The previous prime is 13120717. The next prime is 13120739. The reversal of 13120726 is 62702131.

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

It is a junction number, because it is equal to n+sod(n) for n = 13120697 and 13120706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3696 + ... + 6316.

It is an arithmetic number, because the mean of its divisors is an integer number (2462058).

Almost surely, 2^13120726 is an apocalyptic number.

13120726 is a deficient number, since it is larger than the sum of its proper divisors (6575738).

13120726 is a wasteful number, since it uses less digits than its factorization.

13120726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5126.

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

The square root of 13120726 is about 3622.2542704785. The cubic root of 13120726 is about 235.8590918880.

Adding to 13120726 its reverse (62702131), we get a palindrome (75822857).

The spelling of 13120726 in words is "thirteen million, one hundred twenty thousand, seven hundred twenty-six".