200401165 has 32 divisors (see below), whose sum is σ = 256233600. Its totient is φ = 150232320.

The previous prime is 200401163. The next prime is 200401181. The reversal of 200401165 is 561104002.

It is not a de Polignac number, because 200401165 - 2¹ = 200401163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200401163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1229374 + ... + 1229536.

It is an arithmetic number, because the mean of its divisors is an integer number (8007300).

Almost surely, 2^200401165 is an apocalyptic number.

It is an amenable number.

200401165 is a deficient number, since it is larger than the sum of its proper divisors (55832435).

200401165 is a wasteful number, since it uses less digits than its factorization.

200401165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 200401165 is about 14156.3118431320. The cubic root of 200401165 is about 585.1942910299.

Adding to 200401165 its reverse (561104002), we get a palindrome (761505167).

The spelling of 200401165 in words is "two hundred million, four hundred one thousand, one hundred sixty-five".