200856169 has 4 divisors (see below), whose sum is σ = 201498196. Its totient is φ = 200214144.

The previous prime is 200856133. The next prime is 200856191. The reversal of 200856169 is 961658002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 961658002 = 2 ⋅480829001.

It can be written as a sum of positive squares in 2 ways, for example, as 15896169 + 184960000 = 3987^2 + 13600^2 .

It is a cyclic number.

It is not a de Polignac number, because 200856169 - 2⁷ = 200856041 is a prime.

It is a super-2 number, since 2×200856169² = 80686401250713122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200856269) 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, 320544 + ... + 321169.

It is an arithmetic number, because the mean of its divisors is an integer number (50374549).

Almost surely, 2^200856169 is an apocalyptic number.

It is an amenable number.

200856169 is a deficient number, since it is larger than the sum of its proper divisors (642027).

200856169 is an equidigital number, since it uses as much as digits as its factorization.

200856169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642026.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 200856169 is about 14172.3734427230. The cubic root of 200856169 is about 585.6368441479.

The spelling of 200856169 in words is "two hundred million, eight hundred fifty-six thousand, one hundred sixty-nine".