2179139215 has 12 divisors (see below), whose sum is σ = 2874303432. Its totient is φ = 1584828080.

The previous prime is 2179139213. The next prime is 2179139219. The reversal of 2179139215 is 5129319712.

It is not a de Polignac number, because 2179139215 - 2¹ = 2179139213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2179139213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1800337 + ... + 1801546.

It is an arithmetic number, because the mean of its divisors is an integer number (239525286).

Almost surely, 2^2179139215 is an apocalyptic number.

2179139215 is a deficient number, since it is larger than the sum of its proper divisors (695164217).

2179139215 is a wasteful number, since it uses less digits than its factorization.

2179139215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3601910 (or 3601899 counting only the distinct ones).

The product of its digits is 34020, while the sum is 40.

The square root of 2179139215 is about 46681.2512150221. The cubic root of 2179139215 is about 1296.4675729226.

The spelling of 2179139215 in words is "two billion, one hundred seventy-nine million, one hundred thirty-nine thousand, two hundred fifteen".