194007929 has 2 divisors, whose sum is σ = 194007930. Its totient is φ = 194007928.

The previous prime is 194007907. The next prime is 194007937. The reversal of 194007929 is 929700491.

It is a happy number.

194007929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190578025 + 3429904 = 13805^2 + 1852^2 .

It is an emirp because it is prime and its reverse (929700491) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194007929 is a prime.

It is not a weakly prime, because it can be changed into another prime (194007329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97003964 + 97003965.

It is an arithmetic number, because the mean of its divisors is an integer number (97003965).

Almost surely, 2^194007929 is an apocalyptic number.

It is an amenable number.

194007929 is a deficient number, since it is larger than the sum of its proper divisors (1).

194007929 is an equidigital number, since it uses as much as digits as its factorization.

194007929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 194007929 is about 13928.6729087878. The cubic root of 194007929 is about 578.9039238113.

The spelling of 194007929 in words is "one hundred ninety-four million, seven thousand, nine hundred twenty-nine".