142299 has 12 divisors (see below), whose sum is σ = 208936. Its totient is φ = 93312.

The previous prime is 142297. The next prime is 142319. The reversal of 142299 is 992241.

It is not a de Polignac number, because 142299 - 2¹ = 142297 is a prime.

It is a Duffinian number.

142299 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142297) 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 11 ways as a sum of consecutive naturals, for example, 792 + ... + 954.

2¹⁴²²⁹⁹ is an apocalyptic number.

142299 is a deficient number, since it is larger than the sum of its proper divisors (66637).

142299 is a wasteful number, since it uses less digits than its factorization.

142299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 263 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 142299 is about 377.2253968120. The cubic root of 142299 is about 52.2076264895.

It can be divided in two parts, 1422 and 99, that added together give a square (1521 = 39²).

The spelling of 142299 in words is "one hundred forty-two thousand, two hundred ninety-nine".