199252589 has 2 divisors, whose sum is σ = 199252590. Its totient is φ = 199252588.

The previous prime is 199252549. The next prime is 199252607. The reversal of 199252589 is 985252991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177555625 + 21696964 = 13325^2 + 4658^2 .

It is an emirp because it is prime and its reverse (985252991) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199252589 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199252549) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99626294 + 99626295.

It is an arithmetic number, because the mean of its divisors is an integer number (99626295).

Almost surely, 2^199252589 is an apocalyptic number.

It is an amenable number.

199252589 is a deficient number, since it is larger than the sum of its proper divisors (1).

199252589 is an equidigital number, since it uses as much as digits as its factorization.

199252589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 583200, while the sum is 50.

The square root of 199252589 is about 14115.6859202803. The cubic root of 199252589 is about 584.0741572887.

The spelling of 199252589 in words is "one hundred ninety-nine million, two hundred fifty-two thousand, five hundred eighty-nine".