143131122 has 12 divisors (see below), whose sum is σ = 310117470. Its totient is φ = 47710368.

The previous prime is 143131117. The next prime is 143131127. The reversal of 143131122 is 221131341.

It is an interprime number because it is at equal distance from previous prime (143131117) and next prime (143131127).

It can be written as a sum of positive squares in only one way, i.e., 102030201 + 41100921 = 10101^2 + 6411^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 7951729 = 143131122 / (1 + 4 + 3 + 1 + 3 + 1 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 143131095 and 143131104.

It is not an unprimeable number, because it can be changed into a prime (143131127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3975847 + ... + 3975882.

Almost surely, 2^143131122 is an apocalyptic number.

143131122 is an abundant number, since it is smaller than the sum of its proper divisors (166986348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143131122 is a wasteful number, since it uses less digits than its factorization.

143131122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7951737 (or 7951734 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 143131122 is about 11963.7419731454. The cubic root of 143131122 is about 523.0919363061.

Adding to 143131122 its reverse (221131341), we get a palindrome (364262463).

The spelling of 143131122 in words is "one hundred forty-three million, one hundred thirty-one thousand, one hundred twenty-two".