131199 has 8 divisors (see below), whose sum is σ = 177072. Its totient is φ = 86400.

The previous prime is 131171. The next prime is 131203. The reversal of 131199 is 991131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131199 - 2⁷ = 131071 is a prime.

131199 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87 + ... + 519.

It is an arithmetic number, because the mean of its divisors is an integer number (22134).

2¹³¹¹⁹⁹ is an apocalyptic number.

131199 is a deficient number, since it is larger than the sum of its proper divisors (45873).

131199 is a wasteful number, since it uses less digits than its factorization.

131199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537.

The product of its digits is 243, while the sum is 24.

The square root of 131199 is about 362.2140251288. The cubic root of 131199 is about 50.8132346116.

The spelling of 131199 in words is "one hundred thirty-one thousand, one hundred ninety-nine".