194124253 has 2 divisors, whose sum is σ = 194124254. Its totient is φ = 194124252.

The previous prime is 194124239. The next prime is 194124269. The reversal of 194124253 is 352421491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164942649 + 29181604 = 12843^2 + 5402^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194124253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194124223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97062126 + 97062127.

It is an arithmetic number, because the mean of its divisors is an integer number (97062127).

Almost surely, 2^194124253 is an apocalyptic number.

It is an amenable number.

194124253 is a deficient number, since it is larger than the sum of its proper divisors (1).

194124253 is an equidigital number, since it uses as much as digits as its factorization.

194124253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 194124253 is about 13932.8479859647. The cubic root of 194124253 is about 579.0196011552.

The spelling of 194124253 in words is "one hundred ninety-four million, one hundred twenty-four thousand, two hundred fifty-three".