194165357 has 2 divisors, whose sum is σ = 194165358. Its totient is φ = 194165356.

The previous prime is 194165311. The next prime is 194165359. The reversal of 194165357 is 753561491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171374281 + 22791076 = 13091^2 + 4774^2 .

It is a cyclic number.

It is not a de Polignac number, because 194165357 - 2¹⁶ = 194099821 is a prime.

Together with 194165359, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194165359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97082678 + 97082679.

It is an arithmetic number, because the mean of its divisors is an integer number (97082679).

Almost surely, 2^194165357 is an apocalyptic number.

It is an amenable number.

194165357 is a deficient number, since it is larger than the sum of its proper divisors (1).

194165357 is an equidigital number, since it uses as much as digits as its factorization.

194165357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 41.

The square root of 194165357 is about 13934.3229831951. The cubic root of 194165357 is about 579.0604656045.

The spelling of 194165357 in words is "one hundred ninety-four million, one hundred sixty-five thousand, three hundred fifty-seven".