200170493 has 2 divisors, whose sum is σ = 200170494. Its totient is φ = 200170492.

The previous prime is 200170471. The next prime is 200170501. The reversal of 200170493 is 394071002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113252164 + 86918329 = 10642^2 + 9323^2 .

It is a cyclic number.

It is not a de Polignac number, because 200170493 - 2⁶ = 200170429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200170693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100085246 + 100085247.

It is an arithmetic number, because the mean of its divisors is an integer number (100085247).

Almost surely, 2^200170493 is an apocalyptic number.

It is an amenable number.

200170493 is a deficient number, since it is larger than the sum of its proper divisors (1).

200170493 is an equidigital number, since it uses as much as digits as its factorization.

200170493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 200170493 is about 14148.1621774703. The cubic root of 200170493 is about 584.9696752976.

The spelling of 200170493 in words is "two hundred million, one hundred seventy thousand, four hundred ninety-three".