6631159 has 4 divisors (see below), whose sum is σ = 6785416. Its totient is φ = 6476904.

The previous prime is 6631151. The next prime is 6631189. The reversal of 6631159 is 9511366.

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 6631159 - 2³ = 6631151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6631159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6631151) 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, 77064 + ... + 77149.

It is an arithmetic number, because the mean of its divisors is an integer number (1696354).

Almost surely, 2^6631159 is an apocalyptic number.

6631159 is a deficient number, since it is larger than the sum of its proper divisors (154257).

6631159 is a wasteful number, since it uses less digits than its factorization.

6631159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154256.

The product of its digits is 4860, while the sum is 31.

The square root of 6631159 is about 2575.1036872328. The cubic root of 6631159 is about 187.8724708518.

The spelling of 6631159 in words is "six million, six hundred thirty-one thousand, one hundred fifty-nine".