2195232877 has 2 divisors, whose sum is σ = 2195232878. Its totient is φ = 2195232876.

The previous prime is 2195232857. The next prime is 2195232913. The reversal of 2195232877 is 7782325912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1400331241 + 794901636 = 37421^2 + 28194^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2195232877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2195232857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1097616438 + 1097616439.

It is an arithmetic number, because the mean of its divisors is an integer number (1097616439).

Almost surely, 2^2195232877 is an apocalyptic number.

It is an amenable number.

2195232877 is a deficient number, since it is larger than the sum of its proper divisors (1).

2195232877 is an equidigital number, since it uses as much as digits as its factorization.

2195232877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 46.

The square root of 2195232877 is about 46853.3123375498. The cubic root of 2195232877 is about 1299.6513615389.

The spelling of 2195232877 in words is "two billion, one hundred ninety-five million, two hundred thirty-two thousand, eight hundred seventy-seven".