381286099 has 2 divisors, whose sum is σ = 381286100. Its totient is φ = 381286098.

The previous prime is 381286063. The next prime is 381286141. The reversal of 381286099 is 990682183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 381286099 - 2²⁵ = 347731667 is a prime.

It is not a weakly prime, because it can be changed into another prime (381286039) 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, 190643049 + 190643050.

It is an arithmetic number, because the mean of its divisors is an integer number (190643050).

Almost surely, 2^381286099 is an apocalyptic number.

381286099 is a deficient number, since it is larger than the sum of its proper divisors (1).

381286099 is an equidigital number, since it uses as much as digits as its factorization.

381286099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 381286099 is about 19526.5485685515. The cubic root of 381286099 is about 725.1318659865.

The spelling of 381286099 in words is "three hundred eighty-one million, two hundred eighty-six thousand, ninety-nine".