194000531 has 2 divisors, whose sum is σ = 194000532. Its totient is φ = 194000530.

The previous prime is 194000519. The next prime is 194000579. The reversal of 194000531 is 135000491.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 194000531 - 2⁶ = 194000467 is a prime.

It is a super-2 number, since 2×194000531² = 75272412056563922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 194000497 and 194000506.

It is not a weakly prime, because it can be changed into another prime (194000581) 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, 97000265 + 97000266.

It is an arithmetic number, because the mean of its divisors is an integer number (97000266).

Almost surely, 2^194000531 is an apocalyptic number.

194000531 is a deficient number, since it is larger than the sum of its proper divisors (1).

194000531 is an equidigital number, since it uses as much as digits as its factorization.

194000531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 194000531 is about 13928.4073389602. The cubic root of 194000531 is about 578.8965653738.

The spelling of 194000531 in words is "one hundred ninety-four million, five hundred thirty-one", and thus it is an aban number.