194524901 has 2 divisors, whose sum is σ = 194524902. Its totient is φ = 194524900.

The previous prime is 194524853. The next prime is 194524921. The reversal of 194524901 is 109425491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185368225 + 9156676 = 13615^2 + 3026^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194524901 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194524921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97262450 + 97262451.

It is an arithmetic number, because the mean of its divisors is an integer number (97262451).

Almost surely, 2^194524901 is an apocalyptic number.

It is an amenable number.

194524901 is a deficient number, since it is larger than the sum of its proper divisors (1).

194524901 is an equidigital number, since it uses as much as digits as its factorization.

194524901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 194524901 is about 13947.2183965119. The cubic root of 194524901 is about 579.4176685952.

The spelling of 194524901 in words is "one hundred ninety-four million, five hundred twenty-four thousand, nine hundred one".