142226311 has 4 divisors (see below), whose sum is σ = 143181000. Its totient is φ = 141271624.

The previous prime is 142226303. The next prime is 142226323. The reversal of 142226311 is 113622241.

142226311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113622241 = 9463 ⋅12007.

It is a cyclic number.

It is not a de Polignac number, because 142226311 - 2³ = 142226303 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 (142226111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477121 + ... + 477418.

It is an arithmetic number, because the mean of its divisors is an integer number (35795250).

Almost surely, 2^142226311 is an apocalyptic number.

142226311 is a deficient number, since it is larger than the sum of its proper divisors (954689).

142226311 is an equidigital number, since it uses as much as digits as its factorization.

142226311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954688.

The product of its digits is 576, while the sum is 22.

The square root of 142226311 is about 11925.8673059866. The cubic root of 142226311 is about 521.9873543029.

Adding to 142226311 its reverse (113622241), we get a palindrome (255848552).

The spelling of 142226311 in words is "one hundred forty-two million, two hundred twenty-six thousand, three hundred eleven".