13126920 has 32 divisors (see below), whose sum is σ = 39381120. Its totient is φ = 3500480.

The previous prime is 13126909. The next prime is 13126921. The reversal of 13126920 is 2962131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13126921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54576 + ... + 54815.

It is an arithmetic number, because the mean of its divisors is an integer number (1230660).

Almost surely, 2^13126920 is an apocalyptic number.

13126920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13126920 is an abundant number, since it is smaller than the sum of its proper divisors (26254200).

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

13126920 is a wasteful number, since it uses less digits than its factorization.

13126920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109405 (or 109401 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 13126920 is about 3623.1091620320. The cubic root of 13126920 is about 235.8962006422.

The spelling of 13126920 in words is "thirteen million, one hundred twenty-six thousand, nine hundred twenty".