200126389 has 4 divisors (see below), whose sum is σ = 200459980. Its totient is φ = 199792800.

The previous prime is 200126383. The next prime is 200126393. The reversal of 200126389 is 983621002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 157000900 + 43125489 = 12530^2 + 6567^2 .

It is a cyclic number.

It is not a de Polignac number, because 200126389 - 2¹⁹ = 199602101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200126389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200126383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165894 + ... + 167095.

It is an arithmetic number, because the mean of its divisors is an integer number (50114995).

Almost surely, 2^200126389 is an apocalyptic number.

It is an amenable number.

200126389 is a deficient number, since it is larger than the sum of its proper divisors (333591).

200126389 is an equidigital number, since it uses as much as digits as its factorization.

200126389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333590.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 200126389 is about 14146.6034439366. The cubic root of 200126389 is about 584.9267095950.

The spelling of 200126389 in words is "two hundred million, one hundred twenty-six thousand, three hundred eighty-nine".