14140381 has 2 divisors, whose sum is σ = 14140382. Its totient is φ = 14140380.

The previous prime is 14140363. The next prime is 14140387. The reversal of 14140381 is 18304141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12489156 + 1651225 = 3534^2 + 1285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14140381 is a prime.

It is a super-2 number, since 2×14140381² = 399900749650322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14140387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7070190 + 7070191.

It is an arithmetic number, because the mean of its divisors is an integer number (7070191).

Almost surely, 2^14140381 is an apocalyptic number.

It is an amenable number.

14140381 is a deficient number, since it is larger than the sum of its proper divisors (1).

14140381 is an equidigital number, since it uses as much as digits as its factorization.

14140381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 14140381 is about 3760.3697956451. The cubic root of 14140381 is about 241.8171158840.

The spelling of 14140381 in words is "fourteen million, one hundred forty thousand, three hundred eighty-one".