13714781 has 2 divisors, whose sum is σ = 13714782. Its totient is φ = 13714780.

The previous prime is 13714777. The next prime is 13714793. The reversal of 13714781 is 18741731.

It is a happy number.

13714781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12355225 + 1359556 = 3515^2 + 1166^2 .

It is an emirp because it is prime and its reverse (18741731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13714781 - 2² = 13714777 is a prime.

It is a super-2 number, since 2×13714781² = 376190435755922, which contains 22 as substring.

It is a Chen prime.

It is equal to p₈₉₂₇₃₃ and since 13714781 and 892733 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13714381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6857390 + 6857391.

It is an arithmetic number, because the mean of its divisors is an integer number (6857391).

Almost surely, 2^13714781 is an apocalyptic number.

It is an amenable number.

13714781 is a deficient number, since it is larger than the sum of its proper divisors (1).

13714781 is an equidigital number, since it uses as much as digits as its factorization.

13714781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 32.

The square root of 13714781 is about 3703.3472697008. The cubic root of 13714781 is about 239.3662737038.

The spelling of 13714781 in words is "thirteen million, seven hundred fourteen thousand, seven hundred eighty-one".