194954413 has 2 divisors, whose sum is σ = 194954414. Its totient is φ = 194954412.

The previous prime is 194954401. The next prime is 194954423. The reversal of 194954413 is 314459491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165328164 + 29626249 = 12858^2 + 5443^2 .

It is an emirp because it is prime and its reverse (314459491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 194954413 - 2¹³ = 194946221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194954423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97477206 + 97477207.

It is an arithmetic number, because the mean of its divisors is an integer number (97477207).

Almost surely, 2^194954413 is an apocalyptic number.

It is an amenable number.

194954413 is a deficient number, since it is larger than the sum of its proper divisors (1).

194954413 is an equidigital number, since it uses as much as digits as its factorization.

194954413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 40.

The square root of 194954413 is about 13962.6076719215. The cubic root of 194954413 is about 579.8438075254.

The spelling of 194954413 in words is "one hundred ninety-four million, nine hundred fifty-four thousand, four hundred thirteen".