143141242 has 4 divisors (see below), whose sum is σ = 214711866. Its totient is φ = 71570620.

The previous prime is 143141237. The next prime is 143141267. The reversal of 143141242 is 242141341.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 141348321 + 1792921 = 11889^2 + 1339^2 .

It is a super-2 number, since 2×143141242² = 40978830322605128, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35785309 + ... + 35785312.

Almost surely, 2^143141242 is an apocalyptic number.

143141242 is a deficient number, since it is larger than the sum of its proper divisors (71570624).

143141242 is an equidigital number, since it uses as much as digits as its factorization.

143141242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71570623.

The product of its digits is 768, while the sum is 22.

The square root of 143141242 is about 11964.1649102643. The cubic root of 143141242 is about 523.1042643159.

Adding to 143141242 its reverse (242141341), we get a palindrome (385282583).

Subtracting 143141242 from its reverse (242141341), we obtain a palindrome (99000099).

The spelling of 143141242 in words is "one hundred forty-three million, one hundred forty-one thousand, two hundred forty-two".