142759871 has 4 divisors (see below), whose sum is σ = 146079912. Its totient is φ = 139439832.

The previous prime is 142759831. The next prime is 142759879. The reversal of 142759871 is 178957241.

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 142759871 - 2¹⁴ = 142743487 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 (142759879) 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, 1659956 + ... + 1660041.

It is an arithmetic number, because the mean of its divisors is an integer number (36519978).

Almost surely, 2^142759871 is an apocalyptic number.

142759871 is a deficient number, since it is larger than the sum of its proper divisors (3320041).

142759871 is an equidigital number, since it uses as much as digits as its factorization.

142759871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3320040.

The product of its digits is 141120, while the sum is 44.

The square root of 142759871 is about 11948.2162267010. The cubic root of 142759871 is about 522.6392824809.

The spelling of 142759871 in words is "one hundred forty-two million, seven hundred fifty-nine thousand, eight hundred seventy-one".