381381367 has 2 divisors, whose sum is σ = 381381368. Its totient is φ = 381381366.

The previous prime is 381381347. The next prime is 381381373. The reversal of 381381367 is 763183183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 381381367 - 2²³ = 372992759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381381307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190690683 + 190690684.

It is an arithmetic number, because the mean of its divisors is an integer number (190690684).

Almost surely, 2^381381367 is an apocalyptic number.

381381367 is a deficient number, since it is larger than the sum of its proper divisors (1).

381381367 is an equidigital number, since it uses as much as digits as its factorization.

381381367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 40.

The square root of 381381367 is about 19528.9878641982. The cubic root of 381381367 is about 725.1922546815.

The spelling of 381381367 in words is "three hundred eighty-one million, three hundred eighty-one thousand, three hundred sixty-seven".