142144143226 has 4 divisors (see below), whose sum is σ = 213216214842. Its totient is φ = 71072071612.

The previous prime is 142144143181. The next prime is 142144143227. The reversal of 142144143226 is 622341441241.

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., 128489987025 + 13654156201 = 358455^2 + 116851^2 .

It is a junction number, because it is equal to n+sod(n) for n = 142144143191 and 142144143200.

It is not an unprimeable number, because it can be changed into a prime (142144143227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35536035805 + ... + 35536035808.

Almost surely, 2^142144143226 is an apocalyptic number.

142144143226 is a deficient number, since it is larger than the sum of its proper divisors (71072071616).

142144143226 is an equidigital number, since it uses as much as digits as its factorization.

142144143226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71072071615.

The product of its digits is 36864, while the sum is 34.

Adding to 142144143226 its reverse (622341441241), we get a palindrome (764485584467).

The spelling of 142144143226 in words is "one hundred forty-two billion, one hundred forty-four million, one hundred forty-three thousand, two hundred twenty-six".