3159169221 has 24 divisors (see below), whose sum is σ = 4578197376. Its totient is φ = 1936846080.

The previous prime is 3159169171. The next prime is 3159169231. The reversal of 3159169221 is 1229619513.

It is not a de Polignac number, because 3159169221 - 2¹¹ = 3159167173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 3159169221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3159169231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125901 + ... + 148893.

It is an arithmetic number, because the mean of its divisors is an integer number (190758224).

Almost surely, 2^3159169221 is an apocalyptic number.

It is an amenable number.

3159169221 is a deficient number, since it is larger than the sum of its proper divisors (1419028155).

3159169221 is a wasteful number, since it uses less digits than its factorization.

3159169221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23293 (or 23280 counting only the distinct ones).

The product of its digits is 29160, while the sum is 39.

The square root of 3159169221 is about 56206.4873568879. The cubic root of 3159169221 is about 1467.3181734020.

The spelling of 3159169221 in words is "three billion, one hundred fifty-nine million, one hundred sixty-nine thousand, two hundred twenty-one".