201399 has 16 divisors (see below), whose sum is σ = 311040. Its totient is φ = 114560.

The previous prime is 201389. The next prime is 201401. The reversal of 201399 is 993102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 201399 - 2¹⁵ = 168631 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 201399.

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, 382 + ... + 740.

It is an arithmetic number, because the mean of its divisors is an integer number (19440).

2²⁰¹³⁹⁹ is an apocalyptic number.

201399 is a deficient number, since it is larger than the sum of its proper divisors (109641).

201399 is a wasteful number, since it uses less digits than its factorization.

201399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 201399 is about 448.7749993037. The cubic root of 201399 is about 58.6163947496.

It can be divided in two parts, 2013 and 99, that added together give a palindrome (2112).

The spelling of 201399 in words is "two hundred one thousand, three hundred ninety-nine".