194026453 has 2 divisors, whose sum is σ = 194026454. Its totient is φ = 194026452.

The previous prime is 194026451. The next prime is 194026471. The reversal of 194026453 is 354620491.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129914404 + 64112049 = 11398^2 + 8007^2 .

It is a cyclic number.

It is not a de Polignac number, because 194026453 - 2¹ = 194026451 is a prime.

It is a super-2 number, since 2×194026453² = 75292528927522418, which contains 22 as substring.

Together with 194026451, 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 (194026451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97013226 + 97013227.

It is an arithmetic number, because the mean of its divisors is an integer number (97013227).

Almost surely, 2^194026453 is an apocalyptic number.

It is an amenable number.

194026453 is a deficient number, since it is larger than the sum of its proper divisors (1).

194026453 is an equidigital number, since it uses as much as digits as its factorization.

194026453 is an odious number, because the sum of its binary digits is odd.

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

The square root of 194026453 is about 13929.3378521737. The cubic root of 194026453 is about 578.9223479294.

The spelling of 194026453 in words is "one hundred ninety-four million, twenty-six thousand, four hundred fifty-three".