201139999 has 4 divisors (see below), whose sum is σ = 202193280. Its totient is φ = 200086720.

The previous prime is 201139993. The next prime is 201140021. The reversal of 201139999 is 999931102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201139999 - 2¹³ = 201131807 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 (201139993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526354 + ... + 526735.

It is an arithmetic number, because the mean of its divisors is an integer number (50548320).

Almost surely, 2^201139999 is an apocalyptic number.

201139999 is a deficient number, since it is larger than the sum of its proper divisors (1053281).

201139999 is a wasteful number, since it uses less digits than its factorization.

201139999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053280.

The product of its (nonzero) digits is 39366, while the sum is 43.

The square root of 201139999 is about 14182.3834033635. The cubic root of 201139999 is about 585.9125689313.

The spelling of 201139999 in words is "two hundred one million, one hundred thirty-nine thousand, nine hundred ninety-nine".