194496851 has 2 divisors, whose sum is σ = 194496852. Its totient is φ = 194496850.

The previous prime is 194496839. The next prime is 194496859. The reversal of 194496851 is 158694491.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194496851 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 194496796 and 194496805.

It is not a weakly prime, because it can be changed into another prime (194496859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97248425 + 97248426.

It is an arithmetic number, because the mean of its divisors is an integer number (97248426).

Almost surely, 2^194496851 is an apocalyptic number.

194496851 is a deficient number, since it is larger than the sum of its proper divisors (1).

194496851 is an equidigital number, since it uses as much as digits as its factorization.

194496851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 47.

The square root of 194496851 is about 13946.2127834047. The cubic root of 194496851 is about 579.3898170678.

The spelling of 194496851 in words is "one hundred ninety-four million, four hundred ninety-six thousand, eight hundred fifty-one".