381342527 has 2 divisors, whose sum is σ = 381342528. Its totient is φ = 381342526.

The previous prime is 381342523. The next prime is 381342529. The reversal of 381342527 is 725243183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 381342527 - 2² = 381342523 is a prime.

Together with 381342529, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381342523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190671263 + 190671264.

It is an arithmetic number, because the mean of its divisors is an integer number (190671264).

Almost surely, 2^381342527 is an apocalyptic number.

381342527 is a deficient number, since it is larger than the sum of its proper divisors (1).

381342527 is an equidigital number, since it uses as much as digits as its factorization.

381342527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 35.

The square root of 381342527 is about 19527.9934197039. The cubic root of 381342527 is about 725.1676359089.

The spelling of 381342527 in words is "three hundred eighty-one million, three hundred forty-two thousand, five hundred twenty-seven".