143142131 has 4 divisors (see below), whose sum is σ = 156155064. Its totient is φ = 130129200.

The previous prime is 143142113. The next prime is 143142151. The reversal of 143142131 is 131241341.

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 143142131 - 2¹⁴ = 143125747 is a prime.

It is a super-2 number, since 2×143142131² = 40979339334442322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143142151) 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, 6506450 + ... + 6506471.

It is an arithmetic number, because the mean of its divisors is an integer number (39038766).

Almost surely, 2^143142131 is an apocalyptic number.

143142131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

143142131 is a deficient number, since it is larger than the sum of its proper divisors (13012933).

143142131 is a wasteful number, since it uses less digits than its factorization.

143142131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13012932.

The product of its digits is 288, while the sum is 20.

The square root of 143142131 is about 11964.2020628206. The cubic root of 143142131 is about 523.1053472526.

Adding to 143142131 its reverse (131241341), we get a palindrome (274383472).

The spelling of 143142131 in words is "one hundred forty-three million, one hundred forty-two thousand, one hundred thirty-one".