2196180397 has 2 divisors, whose sum is σ = 2196180398. Its totient is φ = 2196180396.

The previous prime is 2196180383. The next prime is 2196180407. The reversal of 2196180397 is 7930816912.

It is a happy number.

2196180397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2175849316 + 20331081 = 46646^2 + 4509^2 .

It is a cyclic number.

It is not a de Polignac number, because 2196180397 - 2¹¹ = 2196178349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2196180347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098090198 + 1098090199.

It is an arithmetic number, because the mean of its divisors is an integer number (1098090199).

Almost surely, 2^2196180397 is an apocalyptic number.

It is an amenable number.

2196180397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2196180397 is an equidigital number, since it uses as much as digits as its factorization.

2196180397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 2196180397 is about 46863.4228049979. The cubic root of 2196180397 is about 1299.8383224970.

The spelling of 2196180397 in words is "two billion, one hundred ninety-six million, one hundred eighty thousand, three hundred ninety-seven".