143122141 has 4 divisors (see below), whose sum is σ = 145548000. Its totient is φ = 140696284.

The previous prime is 143122093. The next prime is 143122211. The reversal of 143122141 is 141221341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 141221341 = 37 ⋅3816793.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143122141 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 (143126141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1212841 + ... + 1212958.

It is an arithmetic number, because the mean of its divisors is an integer number (36387000).

Almost surely, 2^143122141 is an apocalyptic number.

It is an amenable number.

143122141 is a deficient number, since it is larger than the sum of its proper divisors (2425859).

143122141 is an equidigital number, since it uses as much as digits as its factorization.

143122141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2425858.

The product of its digits is 192, while the sum is 19.

The square root of 143122141 is about 11963.3666248260. The cubic root of 143122141 is about 523.0809953198.

Adding to 143122141 its reverse (141221341), we get a palindrome (284343482).

The spelling of 143122141 in words is "one hundred forty-three million, one hundred twenty-two thousand, one hundred forty-one".