143342131 has 4 divisors (see below), whose sum is σ = 145692064. Its totient is φ = 140992200.

The previous prime is 143342123. The next prime is 143342153. The reversal of 143342131 is 131243341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131243341 = 977 ⋅134333.

It is a cyclic number.

It is not a de Polignac number, because 143342131 - 2³ = 143342123 is a prime.

It is a super-2 number, since 2×143342131² = 41093933039242322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143342231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1174875 + ... + 1174996.

It is an arithmetic number, because the mean of its divisors is an integer number (36423016).

Almost surely, 2^143342131 is an apocalyptic number.

143342131 is a deficient number, since it is larger than the sum of its proper divisors (2349933).

143342131 is an equidigital number, since it uses as much as digits as its factorization.

143342131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349932.

The product of its digits is 864, while the sum is 22.

The square root of 143342131 is about 11972.5574126834. The cubic root of 143342131 is about 523.3488636806.

Adding to 143342131 its reverse (131243341), we get a palindrome (274585472).

The spelling of 143342131 in words is "one hundred forty-three million, three hundred forty-two thousand, one hundred thirty-one".