143312122 has 4 divisors (see below), whose sum is σ = 214968186. Its totient is φ = 71656060.

The previous prime is 143312111. The next prime is 143312153. The reversal of 143312122 is 221213341.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221213341 = 1097 ⋅201653.

It can be written as a sum of positive squares in only one way, i.e., 88566921 + 54745201 = 9411^2 + 7399^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 143312122.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 35828029 + ... + 35828032.

Almost surely, 2^143312122 is an apocalyptic number.

143312122 is a deficient number, since it is larger than the sum of its proper divisors (71656064).

143312122 is an equidigital number, since it uses as much as digits as its factorization.

143312122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71656063.

The product of its digits is 288, while the sum is 19.

The square root of 143312122 is about 11971.3041060696. The cubic root of 143312122 is about 523.3123397081.

Adding to 143312122 its reverse (221213341), we get a palindrome (364525463).

The spelling of 143312122 in words is "one hundred forty-three million, three hundred twelve thousand, one hundred twenty-two".