2195651747 has 2 divisors, whose sum is σ = 2195651748. Its totient is φ = 2195651746.

The previous prime is 2195651729. The next prime is 2195651789. The reversal of 2195651747 is 7471565912.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2195651747 - 2¹⁴ = 2195635363 is a prime.

It is not a weakly prime, because it can be changed into another prime (2195651347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1097825873 + 1097825874.

It is an arithmetic number, because the mean of its divisors is an integer number (1097825874).

Almost surely, 2^2195651747 is an apocalyptic number.

2195651747 is a deficient number, since it is larger than the sum of its proper divisors (1).

2195651747 is an equidigital number, since it uses as much as digits as its factorization.

2195651747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529200, while the sum is 47.

The square root of 2195651747 is about 46857.7821391495. The cubic root of 2195651747 is about 1299.7340179700.

The spelling of 2195651747 in words is "two billion, one hundred ninety-five million, six hundred fifty-one thousand, seven hundred forty-seven".