104194429 has 2 divisors, whose sum is σ = 104194430. Its totient is φ = 104194428.

The previous prime is 104194427. The next prime is 104194459. The reversal of 104194429 is 924491401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76125625 + 28068804 = 8725^2 + 5298^2 .

It is an emirp because it is prime and its reverse (924491401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104194429 - 2¹ = 104194427 is a prime.

Together with 104194427, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 104194394 and 104194403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104194421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52097214 + 52097215.

It is an arithmetic number, because the mean of its divisors is an integer number (52097215).

Almost surely, 2^104194429 is an apocalyptic number.

It is an amenable number.

104194429 is a deficient number, since it is larger than the sum of its proper divisors (1).

104194429 is an equidigital number, since it uses as much as digits as its factorization.

104194429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 104194429 is about 10207.5672420024. The cubic root of 104194429 is about 470.5598112970.

The spelling of 104194429 in words is "one hundred four million, one hundred ninety-four thousand, four hundred twenty-nine".