2196523061 has 4 divisors (see below), whose sum is σ = 2226612492. Its totient is φ = 2166433632.

The previous prime is 2196523027. The next prime is 2196523117. The reversal of 2196523061 is 1603256912.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1699500625 + 497022436 = 41225^2 + 22294^2 .

It is a cyclic number.

It is not a de Polignac number, because 2196523061 - 2²⁶ = 2129414197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2196523261) 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, 15044606 + ... + 15044751.

It is an arithmetic number, because the mean of its divisors is an integer number (556653123).

Almost surely, 2^2196523061 is an apocalyptic number.

It is an amenable number.

2196523061 is a deficient number, since it is larger than the sum of its proper divisors (30089431).

2196523061 is an equidigital number, since it uses as much as digits as its factorization.

2196523061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30089430.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 2196523061 is about 46867.0786480233. The cubic root of 2196523061 is about 1299.9059223833.

Adding to 2196523061 its reverse (1603256912), we get a palindrome (3799779973).

The spelling of 2196523061 in words is "two billion, one hundred ninety-six million, five hundred twenty-three thousand, sixty-one".