13751320 has 32 divisors (see below), whose sum is σ = 33754320. Its totient is φ = 5000320.

The previous prime is 13751303. The next prime is 13751323. The reversal of 13751320 is 2315731.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 13751291 and 13751300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13751323) 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, 15187 + ... + 16066.

Almost surely, 2^13751320 is an apocalyptic number.

13751320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13751320 is an abundant number, since it is smaller than the sum of its proper divisors (20003000).

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

13751320 is a wasteful number, since it uses less digits than its factorization.

13751320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31275 (or 31271 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 13751320 is about 3708.2772280400. The cubic root of 13751320 is about 239.5786588796.

The spelling of 13751320 in words is "thirteen million, seven hundred fifty-one thousand, three hundred twenty".