2215138196 has 24 divisors (see below), whose sum is σ = 3972904320. Its totient is φ = 1080361152.

The previous prime is 2215138193. The next prime is 2215138213. The reversal of 2215138196 is 6918315122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215138193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16001 + ... + 68456.

It is an arithmetic number, because the mean of its divisors is an integer number (165537680).

Almost surely, 2^2215138196 is an apocalyptic number.

It is an amenable number.

2215138196 is a deficient number, since it is larger than the sum of its proper divisors (1757766124).

2215138196 is a wasteful number, since it uses less digits than its factorization.

2215138196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84623 (or 84621 counting only the distinct ones).

The product of its digits is 25920, while the sum is 38.

The square root of 2215138196 is about 47065.2546577621. The cubic root of 2215138196 is about 1303.5677530622.

The spelling of 2215138196 in words is "two billion, two hundred fifteen million, one hundred thirty-eight thousand, one hundred ninety-six".