194955829 has 2 divisors, whose sum is σ = 194955830. Its totient is φ = 194955828.

The previous prime is 194955823. The next prime is 194955841. The reversal of 194955829 is 928559491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194463025 + 492804 = 13945^2 + 702^2 .

It is a cyclic number.

It is not a de Polignac number, because 194955829 - 2³ = 194955821 is a prime.

It is a super-2 number, since 2×194955829² = 76015550522154482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194955821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97477914 + 97477915.

It is an arithmetic number, because the mean of its divisors is an integer number (97477915).

Almost surely, 2^194955829 is an apocalyptic number.

It is an amenable number.

194955829 is a deficient number, since it is larger than the sum of its proper divisors (1).

194955829 is an equidigital number, since it uses as much as digits as its factorization.

194955829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1166400, while the sum is 52.

The square root of 194955829 is about 13962.6583786899. The cubic root of 194955829 is about 579.8452113695.

The spelling of 194955829 in words is "one hundred ninety-four million, nine hundred fifty-five thousand, eight hundred twenty-nine".