142343122 has 4 divisors (see below), whose sum is σ = 213514686. Its totient is φ = 71171560.

The previous prime is 142343111. The next prime is 142343147. The reversal of 142343122 is 221343241.

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., 121903681 + 20439441 = 11041^2 + 4521^2 .

It is a junction number, because it is equal to n+sod(n) for n = 142343093 and 142343102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35585779 + ... + 35585782.

Almost surely, 2^142343122 is an apocalyptic number.

142343122 is a deficient number, since it is larger than the sum of its proper divisors (71171564).

142343122 is an equidigital number, since it uses as much as digits as its factorization.

142343122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71171563.

The product of its digits is 1152, while the sum is 22.

The square root of 142343122 is about 11930.7636805026. The cubic root of 142343122 is about 522.1302185857.

Adding to 142343122 its reverse (221343241), we get a palindrome (363686363).

The spelling of 142343122 in words is "one hundred forty-two million, three hundred forty-three thousand, one hundred twenty-two".