142323226 has 4 divisors (see below), whose sum is σ = 213484842. Its totient is φ = 71161612.

The previous prime is 142323199. The next prime is 142323227. The reversal of 142323226 is 622323241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 622323241 = 127 ⋅4900183.

It can be written as a sum of positive squares in only one way, i.e., 84548025 + 57775201 = 9195^2 + 7601^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 142323226.

It is not an unprimeable number, because it can be changed into a prime (142323227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35580805 + ... + 35580808.

Almost surely, 2^142323226 is an apocalyptic number.

142323226 is a deficient number, since it is larger than the sum of its proper divisors (71161616).

142323226 is an equidigital number, since it uses as much as digits as its factorization.

142323226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71161615.

The product of its digits is 3456, while the sum is 25.

The square root of 142323226 is about 11929.9298405313. The cubic root of 142323226 is about 522.1058905472.

Adding to 142323226 its reverse (622323241), we get a palindrome (764646467).

It can be divided in two parts, 1423 and 23226, that added together give a square (24649 = 157²).

The spelling of 142323226 in words is "one hundred forty-two million, three hundred twenty-three thousand, two hundred twenty-six".