863144147 has 2 divisors, whose sum is σ = 863144148. Its totient is φ = 863144146.

The previous prime is 863144101. The next prime is 863144201. The reversal of 863144147 is 741441368.

It is a happy number.

863144147 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 863144147 - 2¹⁰ = 863143123 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 863144147.

It is not a weakly prime, because it can be changed into another prime (863144647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431572073 + 431572074.

It is an arithmetic number, because the mean of its divisors is an integer number (431572074).

Almost surely, 2^863144147 is an apocalyptic number.

863144147 is a deficient number, since it is larger than the sum of its proper divisors (1).

863144147 is an equidigital number, since it uses as much as digits as its factorization.

863144147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 38.

The square root of 863144147 is about 29379.3149511693. The cubic root of 863144147 is about 952.1260407203.

The spelling of 863144147 in words is "eight hundred sixty-three million, one hundred forty-four thousand, one hundred forty-seven".