194460137 has 2 divisors, whose sum is σ = 194460138. Its totient is φ = 194460136.

The previous prime is 194460083. The next prime is 194460157. The reversal of 194460137 is 731064491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138674176 + 55785961 = 11776^2 + 7469^2 .

It is a cyclic number.

It is not a de Polignac number, because 194460137 - 2⁶ = 194460073 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 194460097 and 194460106.

It is not a weakly prime, because it can be changed into another prime (194460157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97230068 + 97230069.

It is an arithmetic number, because the mean of its divisors is an integer number (97230069).

Almost surely, 2^194460137 is an apocalyptic number.

It is an amenable number.

194460137 is a deficient number, since it is larger than the sum of its proper divisors (1).

194460137 is an equidigital number, since it uses as much as digits as its factorization.

194460137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 194460137 is about 13944.8964499562. The cubic root of 194460137 is about 579.3533587974.

The spelling of 194460137 in words is "one hundred ninety-four million, four hundred sixty thousand, one hundred thirty-seven".