200172589 has 2 divisors, whose sum is σ = 200172590. Its totient is φ = 200172588.

The previous prime is 200172563. The next prime is 200172593. The reversal of 200172589 is 985271002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153016900 + 47155689 = 12370^2 + 6867^2 .

It is a cyclic number.

It is not a de Polignac number, because 200172589 - 2⁷ = 200172461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200172509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100086294 + 100086295.

It is an arithmetic number, because the mean of its divisors is an integer number (100086295).

Almost surely, 2^200172589 is an apocalyptic number.

It is an amenable number.

200172589 is a deficient number, since it is larger than the sum of its proper divisors (1).

200172589 is an equidigital number, since it uses as much as digits as its factorization.

200172589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 200172589 is about 14148.2362505013. The cubic root of 200172589 is about 584.9717170440.

The spelling of 200172589 in words is "two hundred million, one hundred seventy-two thousand, five hundred eighty-nine".