381517067 has 2 divisors, whose sum is σ = 381517068. Its totient is φ = 381517066.

The previous prime is 381517061. The next prime is 381517079. The reversal of 381517067 is 760715183.

It is a weak prime.

It is an emirp because it is prime and its reverse (760715183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 381517067 - 2¹⁴ = 381500683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 381517067.

It is not a weakly prime, because it can be changed into another prime (381517061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190758533 + 190758534.

It is an arithmetic number, because the mean of its divisors is an integer number (190758534).

Almost surely, 2^381517067 is an apocalyptic number.

381517067 is a deficient number, since it is larger than the sum of its proper divisors (1).

381517067 is an equidigital number, since it uses as much as digits as its factorization.

381517067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 381517067 is about 19532.4618776026. The cubic root of 381517067 is about 725.2782551420.

The spelling of 381517067 in words is "three hundred eighty-one million, five hundred seventeen thousand, sixty-seven".