381594113 has 2 divisors, whose sum is σ = 381594114. Its totient is φ = 381594112.

The previous prime is 381594089. The next prime is 381594131. The reversal of 381594113 is 311495183.

Together with next prime (381594131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 357701569 + 23892544 = 18913^2 + 4888^2 .

It is a cyclic number.

It is not a de Polignac number, because 381594113 - 2¹⁰ = 381593089 is a prime.

It is a super-2 number, since 2×381594113² = 291228134152513538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (381594163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190797056 + 190797057.

It is an arithmetic number, because the mean of its divisors is an integer number (190797057).

Almost surely, 2^381594113 is an apocalyptic number.

It is an amenable number.

381594113 is a deficient number, since it is larger than the sum of its proper divisors (1).

381594113 is an equidigital number, since it uses as much as digits as its factorization.

381594113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 35.

The square root of 381594113 is about 19534.4340332655. The cubic root of 381594113 is about 725.3270743012.

The spelling of 381594113 in words is "three hundred eighty-one million, five hundred ninety-four thousand, one hundred thirteen".