141868381 has 2 divisors, whose sum is σ = 141868382. Its totient is φ = 141868380.

The previous prime is 141868379. The next prime is 141868387. The reversal of 141868381 is 183868141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141824281 + 44100 = 11909^2 + 210^2 .

It is a cyclic number.

It is not a de Polignac number, because 141868381 - 2¹ = 141868379 is a prime.

It is a super-2 number, since 2×141868381² = 40253275055122322, which contains 22 as substring.

Together with 141868379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141868387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70934190 + 70934191.

It is an arithmetic number, because the mean of its divisors is an integer number (70934191).

Almost surely, 2^141868381 is an apocalyptic number.

It is an amenable number.

141868381 is a deficient number, since it is larger than the sum of its proper divisors (1).

141868381 is an equidigital number, since it uses as much as digits as its factorization.

141868381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 40.

The square root of 141868381 is about 11910.8513969405. The cubic root of 141868381 is about 521.5491046735.

The spelling of 141868381 in words is "one hundred forty-one million, eight hundred sixty-eight thousand, three hundred eighty-one".