194534413 has 2 divisors, whose sum is σ = 194534414. Its totient is φ = 194534412.

The previous prime is 194534411. The next prime is 194534447. The reversal of 194534413 is 314435491.

It is an a-pointer prime, because the next prime (194534447) can be obtained adding 194534413 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114019684 + 80514729 = 10678^2 + 8973^2 .

It is a cyclic number.

It is not a de Polignac number, because 194534413 - 2¹ = 194534411 is a prime.

Together with 194534411, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194534411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97267206 + 97267207.

It is an arithmetic number, because the mean of its divisors is an integer number (97267207).

Almost surely, 2^194534413 is an apocalyptic number.

It is an amenable number.

194534413 is a deficient number, since it is larger than the sum of its proper divisors (1).

194534413 is an equidigital number, since it uses as much as digits as its factorization.

194534413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 194534413 is about 13947.5593922378. The cubic root of 194534413 is about 579.4271126835.

The spelling of 194534413 in words is "one hundred ninety-four million, five hundred thirty-four thousand, four hundred thirteen".