381674851 has 2 divisors, whose sum is σ = 381674852. Its totient is φ = 381674850.

The previous prime is 381674819. The next prime is 381674873. The reversal of 381674851 is 158476183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 381674851 - 2⁵ = 381674819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 381674798 and 381674807.

It is not a weakly prime, because it can be changed into another prime (381674801) 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, 190837425 + 190837426.

It is an arithmetic number, because the mean of its divisors is an integer number (190837426).

Almost surely, 2^381674851 is an apocalyptic number.

381674851 is a deficient number, since it is larger than the sum of its proper divisors (1).

381674851 is an equidigital number, since it uses as much as digits as its factorization.

381674851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 43.

The square root of 381674851 is about 19536.5004798710. The cubic root of 381674851 is about 725.3782257958.

The spelling of 381674851 in words is "three hundred eighty-one million, six hundred seventy-four thousand, eight hundred fifty-one".