142231299 has 16 divisors (see below), whose sum is σ = 229483008. Its totient is φ = 76493952.

The previous prime is 142231289. The next prime is 142231301. The reversal of 142231299 is 992132241.

It is not a de Polignac number, because 142231299 - 2⁵ = 142231267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142231249) 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, 198847 + ... + 199560.

It is an arithmetic number, because the mean of its divisors is an integer number (14342688).

Almost surely, 2^142231299 is an apocalyptic number.

142231299 is a deficient number, since it is larger than the sum of its proper divisors (87251709).

142231299 is a wasteful number, since it uses less digits than its factorization.

142231299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398434.

The product of its digits is 7776, while the sum is 33.

The square root of 142231299 is about 11926.0764294046. The cubic root of 142231299 is about 521.9934564145.

The spelling of 142231299 in words is "one hundred forty-two million, two hundred thirty-one thousand, two hundred ninety-nine".