200169021 has 8 divisors (see below), whose sum is σ = 287422240. Its totient is φ = 123180912.

The previous prime is 200169019. The next prime is 200169029. The reversal of 200169021 is 120961002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 200169021 - 2¹ = 200169019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200169029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2566231 + ... + 2566308.

It is an arithmetic number, because the mean of its divisors is an integer number (35927780).

Almost surely, 2^200169021 is an apocalyptic number.

It is an amenable number.

200169021 is a deficient number, since it is larger than the sum of its proper divisors (87253219).

200169021 is a wasteful number, since it uses less digits than its factorization.

200169021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5132555.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 200169021 is about 14148.1101564838. The cubic root of 200169021 is about 584.9682413908.

The spelling of 200169021 in words is "two hundred million, one hundred sixty-nine thousand, twenty-one".