142318771 has 4 divisors (see below), whose sum is σ = 162650032. Its totient is φ = 121987512.

The previous prime is 142318769. The next prime is 142318789. The reversal of 142318771 is 177813241.

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 142318771 - 2¹ = 142318769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142318711) 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, 10165620 + ... + 10165633.

It is an arithmetic number, because the mean of its divisors is an integer number (40662508).

Almost surely, 2^142318771 is an apocalyptic number.

142318771 is a deficient number, since it is larger than the sum of its proper divisors (20331261).

142318771 is an equidigital number, since it uses as much as digits as its factorization.

142318771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20331260.

The product of its digits is 9408, while the sum is 34.

The square root of 142318771 is about 11929.7431238061. The cubic root of 142318771 is about 522.1004428394.

The spelling of 142318771 in words is "one hundred forty-two million, three hundred eighteen thousand, seven hundred seventy-one".