1331228196 has 45 divisors (see below), whose sum is σ = 3481811179. Its totient is φ = 443523816.

The previous prime is 1331228183. The next prime is 1331228207. The reversal of 1331228196 is 6918221331.

The square root of 1331228196 is 36486.

It is a perfect power (a square), and thus also a powerful number.

1331228196 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 1331228196.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 655735 + ... + 657761.

Almost surely, 2^1331228196 is an apocalyptic number.

1331228196 is the 36486-th square number.

It is an amenable number.

1331228196 is an abundant number, since it is smaller than the sum of its proper divisors (2150582983).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1331228196 is an frugal number, since it uses more digits than its factorization.

1331228196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4070 (or 2032 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The cubic root of 1331228196 is about 1100.0628603196.

Multiplying 1331228196 by its sum of digits (36), we get a square (47924215056 = 218916²).

1331228196 divided by its sum of digits (36) gives a square (36978561 = 6081²).

The spelling of 1331228196 in words is "one billion, three hundred thirty-one million, two hundred twenty-eight thousand, one hundred ninety-six".