201369 has 16 divisors (see below), whose sum is σ = 315392. Its totient is φ = 111888.

The previous prime is 201359. The next prime is 201389. The reversal of 201369 is 963102.

It is not a de Polignac number, because 201369 - 2⁵ = 201337 is a prime.

It is a super-2 number, since 2×201369² = 81098948322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 792 + ... + 1014.

It is an arithmetic number, because the mean of its divisors is an integer number (19712).

2²⁰¹³⁶⁹ is an apocalyptic number.

It is an amenable number.

201369 is a deficient number, since it is larger than the sum of its proper divisors (114023).

201369 is a wasteful number, since it uses less digits than its factorization.

201369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 201369 is about 448.7415737370. The cubic root of 201369 is about 58.6134841440.

The spelling of 201369 in words is "two hundred one thousand, three hundred sixty-nine".