194953207 has 2 divisors, whose sum is σ = 194953208. Its totient is φ = 194953206.

The previous prime is 194953201. The next prime is 194953211. The reversal of 194953207 is 702359491.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194953207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 194953207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194953201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97476603 + 97476604.

It is an arithmetic number, because the mean of its divisors is an integer number (97476604).

Almost surely, 2^194953207 is an apocalyptic number.

194953207 is a deficient number, since it is larger than the sum of its proper divisors (1).

194953207 is an equidigital number, since it uses as much as digits as its factorization.

194953207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 194953207 is about 13962.5644850794. The cubic root of 194953207 is about 579.8426118731.

The spelling of 194953207 in words is "one hundred ninety-four million, nine hundred fifty-three thousand, two hundred seven".