14233781 has 2 divisors, whose sum is σ = 14233782. Its totient is φ = 14233780.

The previous prime is 14233771. The next prime is 14233783. The reversal of 14233781 is 18733241.

14233781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11458225 + 2775556 = 3385^2 + 1666^2 .

It is an emirp because it is prime and its reverse (18733241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14233781 is a prime.

It is a super-2 number, since 2×14233781² = 405201043111922, which contains 22 as substring.

Together with 14233783, it forms a pair of twin primes.

It is a Chen prime.

It is a pancake number, because a pancake can be divided into 14233781 parts by 5335 straight cuts.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14233783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7116890 + 7116891.

It is an arithmetic number, because the mean of its divisors is an integer number (7116891).

Almost surely, 2^14233781 is an apocalyptic number.

It is an amenable number.

14233781 is a deficient number, since it is larger than the sum of its proper divisors (1).

14233781 is an equidigital number, since it uses as much as digits as its factorization.

14233781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

The square root of 14233781 is about 3772.7683469834. The cubic root of 14233781 is about 242.3483644785.

The spelling of 14233781 in words is "fourteen million, two hundred thirty-three thousand, seven hundred eighty-one".