381094349 has 2 divisors, whose sum is σ = 381094350. Its totient is φ = 381094348.

The previous prime is 381094297. The next prime is 381094367. The reversal of 381094349 is 943490183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 374693449 + 6400900 = 19357^2 + 2530^2 .

It is an emirp because it is prime and its reverse (943490183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 381094349 - 2¹² = 381090253 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381090349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190547174 + 190547175.

It is an arithmetic number, because the mean of its divisors is an integer number (190547175).

Almost surely, 2^381094349 is an apocalyptic number.

It is an amenable number.

381094349 is a deficient number, since it is larger than the sum of its proper divisors (1).

381094349 is an equidigital number, since it uses as much as digits as its factorization.

381094349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 381094349 is about 19521.6379691869. The cubic root of 381094349 is about 725.0102885579.

The spelling of 381094349 in words is "three hundred eighty-one million, ninety-four thousand, three hundred forty-nine".