861481067 has 2 divisors, whose sum is σ = 861481068. Its totient is φ = 861481066.

The previous prime is 861481063. The next prime is 861481073. The reversal of 861481067 is 760184168.

861481067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 861481067 - 2² = 861481063 is a prime.

It is not a weakly prime, because it can be changed into another prime (861481063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 430740533 + 430740534.

It is an arithmetic number, because the mean of its divisors is an integer number (430740534).

Almost surely, 2^861481067 is an apocalyptic number.

861481067 is a deficient number, since it is larger than the sum of its proper divisors (1).

861481067 is an equidigital number, since it uses as much as digits as its factorization.

861481067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 861481067 is about 29350.9977172838. The cubic root of 861481067 is about 951.5141383476.

The spelling of 861481067 in words is "eight hundred sixty-one million, four hundred eighty-one thousand, sixty-seven".