6400142159 has 4 divisors (see below), whose sum is σ = 6466123104. Its totient is φ = 6334161216.

The previous prime is 6400142141. The next prime is 6400142171. The reversal of 6400142159 is 9512410046.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6400142159 - 2²⁴ = 6383364943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6400142129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32990327 + ... + 32990520.

It is an arithmetic number, because the mean of its divisors is an integer number (1616530776).

Almost surely, 2^6400142159 is an apocalyptic number.

6400142159 is a deficient number, since it is larger than the sum of its proper divisors (65980945).

6400142159 is an equidigital number, since it uses as much as digits as its factorization.

6400142159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65980944.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 6400142159 is about 80000.8884888162. Note that the first 3 decimals coincide. The cubic root of 6400142159 is about 1856.6492800856.

The spelling of 6400142159 in words is "six billion, four hundred million, one hundred forty-two thousand, one hundred fifty-nine".