2195645351 has 2 divisors, whose sum is σ = 2195645352. Its totient is φ = 2195645350.

The previous prime is 2195645329. The next prime is 2195645357. The reversal of 2195645351 is 1535465912.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2195645351 - 2¹⁰ = 2195644327 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 2195645299 and 2195645308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2195645357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1097822675 + 1097822676.

It is an arithmetic number, because the mean of its divisors is an integer number (1097822676).

Almost surely, 2^2195645351 is an apocalyptic number.

2195645351 is a deficient number, since it is larger than the sum of its proper divisors (1).

2195645351 is an equidigital number, since it uses as much as digits as its factorization.

2195645351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162000, while the sum is 41.

The square root of 2195645351 is about 46857.7138900310. The cubic root of 2195645351 is about 1299.7327559139.

The spelling of 2195645351 in words is "two billion, one hundred ninety-five million, six hundred forty-five thousand, three hundred fifty-one".