6400159 has 2 divisors, whose sum is σ = 6400160. Its totient is φ = 6400158.

The previous prime is 6400151. The next prime is 6400183. The reversal of 6400159 is 9510046.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6400159 - 2³ = 6400151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6400151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3200079 + 3200080.

It is an arithmetic number, because the mean of its divisors is an integer number (3200080).

Almost surely, 2^6400159 is an apocalyptic number.

6400159 is a deficient number, since it is larger than the sum of its proper divisors (1).

6400159 is an equidigital number, since it uses as much as digits as its factorization.

6400159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 6400159 is about 2529.8535530738. The cubic root of 6400159 is about 185.6650908581.

The spelling of 6400159 in words is "six million, four hundred thousand, one hundred fifty-nine".