194990083 has 2 divisors, whose sum is σ = 194990084. Its totient is φ = 194990082.

The previous prime is 194990071. The next prime is 194990087. The reversal of 194990083 is 380099491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 194990083 - 2¹⁷ = 194859011 is a prime.

It is a super-2 number, since 2×194990083² = 76042264936693778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (194990087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97495041 + 97495042.

It is an arithmetic number, because the mean of its divisors is an integer number (97495042).

Almost surely, 2^194990083 is an apocalyptic number.

194990083 is a deficient number, since it is larger than the sum of its proper divisors (1).

194990083 is an equidigital number, since it uses as much as digits as its factorization.

194990083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 194990083 is about 13963.8849536939. The cubic root of 194990083 is about 579.8791692406.

The spelling of 194990083 in words is "one hundred ninety-four million, nine hundred ninety thousand, eighty-three".