142544299 has 4 divisors (see below), whose sum is σ = 142710336. Its totient is φ = 142378264.

The previous prime is 142544287. The next prime is 142544329. The reversal of 142544299 is 992445241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 992445241 = 13907 ⋅71363.

It is a cyclic number.

It is not a de Polignac number, because 142544299 - 2⁵ = 142544267 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142547299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81724 + ... + 83449.

It is an arithmetic number, because the mean of its divisors is an integer number (35677584).

Almost surely, 2^142544299 is an apocalyptic number.

142544299 is a deficient number, since it is larger than the sum of its proper divisors (166037).

142544299 is an equidigital number, since it uses as much as digits as its factorization.

142544299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166036.

The product of its digits is 103680, while the sum is 40.

The square root of 142544299 is about 11939.1917230607. The cubic root of 142544299 is about 522.3760825770.

The spelling of 142544299 in words is "one hundred forty-two million, five hundred forty-four thousand, two hundred ninety-nine".