142784159 has 4 divisors (see below), whose sum is σ = 163181904. Its totient is φ = 122386416.

The previous prime is 142784149. The next prime is 142784177. The reversal of 142784159 is 951487241.

142784159 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142784159 - 2¹² = 142780063 is a prime.

It is a super-2 number, since 2×142784159² = 40774632122674562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142784149) 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, 10198862 + ... + 10198875.

It is an arithmetic number, because the mean of its divisors is an integer number (40795476).

Almost surely, 2^142784159 is an apocalyptic number.

142784159 is a deficient number, since it is larger than the sum of its proper divisors (20397745).

142784159 is an equidigital number, since it uses as much as digits as its factorization.

142784159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20397744.

The product of its digits is 80640, while the sum is 41.

The square root of 142784159 is about 11949.2325695000. The cubic root of 142784159 is about 522.6689199950.

The spelling of 142784159 in words is "one hundred forty-two million, seven hundred eighty-four thousand, one hundred fifty-nine".