142199 has 4 divisors (see below), whose sum is σ = 144936. Its totient is φ = 139464.

The previous prime is 142193. The next prime is 142211. The reversal of 142199 is 991241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 991241 = 769 ⋅1289.

It is a cyclic number.

It is not a de Polignac number, because 142199 - 2⁴ = 142183 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 (142193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1289 + ... + 1394.

It is an arithmetic number, because the mean of its divisors is an integer number (36234).

2¹⁴²¹⁹⁹ is an apocalyptic number.

142199 is a deficient number, since it is larger than the sum of its proper divisors (2737).

142199 is an equidigital number, since it uses as much as digits as its factorization.

142199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2736.

The product of its digits is 648, while the sum is 26.

The square root of 142199 is about 377.0928267682. The cubic root of 142199 is about 52.1953940632.

The spelling of 142199 in words is "one hundred forty-two thousand, one hundred ninety-nine".