2194194907 has 2 divisors, whose sum is σ = 2194194908. Its totient is φ = 2194194906.

The previous prime is 2194194883. The next prime is 2194194929. The reversal of 2194194907 is 7094914912.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2194194907 is a prime.

It is not a weakly prime, because it can be changed into another prime (2194194967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1097097453 + 1097097454.

It is an arithmetic number, because the mean of its divisors is an integer number (1097097454).

Almost surely, 2^2194194907 is an apocalyptic number.

2194194907 is a deficient number, since it is larger than the sum of its proper divisors (1).

2194194907 is an equidigital number, since it uses as much as digits as its factorization.

2194194907 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 2194194907 is about 46842.2342229745. The cubic root of 2194194907 is about 1299.4464915819.

The spelling of 2194194907 in words is "two billion, one hundred ninety-four million, one hundred ninety-four thousand, nine hundred seven".