381207577 has 2 divisors, whose sum is σ = 381207578. Its totient is φ = 381207576.

The previous prime is 381207551. The next prime is 381207601. The reversal of 381207577 is 775702183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 296493961 + 84713616 = 17219^2 + 9204^2 .

It is a cyclic number.

It is not a de Polignac number, because 381207577 - 2¹¹ = 381205529 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (381207517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190603788 + 190603789.

It is an arithmetic number, because the mean of its divisors is an integer number (190603789).

Almost surely, 2^381207577 is an apocalyptic number.

It is an amenable number.

381207577 is a deficient number, since it is larger than the sum of its proper divisors (1).

381207577 is an equidigital number, since it uses as much as digits as its factorization.

381207577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82320, while the sum is 40.

The square root of 381207577 is about 19524.5378178332. The cubic root of 381207577 is about 725.0820847211.

The spelling of 381207577 in words is "three hundred eighty-one million, two hundred seven thousand, five hundred seventy-seven".