142224536 has 8 divisors (see below), whose sum is σ = 266671020. Its totient is φ = 71112264.

The previous prime is 142224517. The next prime is 142224539. The reversal of 142224536 is 635422241.

142224536 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 142224499 and 142224508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142224539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8889026 + ... + 8889041.

Almost surely, 2^142224536 is an apocalyptic number.

It is an amenable number.

142224536 is a deficient number, since it is larger than the sum of its proper divisors (124446484).

142224536 is a wasteful number, since it uses less digits than its factorization.

142224536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17778073 (or 17778069 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 142224536 is about 11925.7928876868. The cubic root of 142224536 is about 521.9851828073.

Adding to 142224536 its reverse (635422241), we get a palindrome (777646777).

The spelling of 142224536 in words is "one hundred forty-two million, two hundred twenty-four thousand, five hundred thirty-six".