6622159 has 4 divisors (see below), whose sum is σ = 6763104. Its totient is φ = 6481216.

The previous prime is 6622157. The next prime is 6622177. The reversal of 6622159 is 9512266.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9512266 = 2 ⋅4756133.

It is a cyclic number.

It is not a de Polignac number, because 6622159 - 2¹ = 6622157 is a prime.

It is an Ulam number.

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 6622159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6622151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70402 + ... + 70495.

It is an arithmetic number, because the mean of its divisors is an integer number (1690776).

Almost surely, 2^6622159 is an apocalyptic number.

6622159 is a deficient number, since it is larger than the sum of its proper divisors (140945).

6622159 is a wasteful number, since it uses less digits than its factorization.

6622159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140944.

The product of its digits is 6480, while the sum is 31.

The square root of 6622159 is about 2573.3555914409. The cubic root of 6622159 is about 187.7874370604.

The spelling of 6622159 in words is "six million, six hundred twenty-two thousand, one hundred fifty-nine".