381436093 has 2 divisors, whose sum is σ = 381436094. Its totient is φ = 381436092.

The previous prime is 381436091. The next prime is 381436147. The reversal of 381436093 is 390634183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 249576804 + 131859289 = 15798^2 + 11483^2 .

It is a cyclic number.

It is not a de Polignac number, because 381436093 - 2¹ = 381436091 is a prime.

Together with 381436091, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381436091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190718046 + 190718047.

It is an arithmetic number, because the mean of its divisors is an integer number (190718047).

Almost surely, 2^381436093 is an apocalyptic number.

It is an amenable number.

381436093 is a deficient number, since it is larger than the sum of its proper divisors (1).

381436093 is an equidigital number, since it uses as much as digits as its factorization.

381436093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 381436093 is about 19530.3889618205. The cubic root of 381436093 is about 725.2269399743.

The spelling of 381436093 in words is "three hundred eighty-one million, four hundred thirty-six thousand, ninety-three".