142224532 has 6 divisors (see below), whose sum is σ = 248892938. Its totient is φ = 71112264.

The previous prime is 142224517. The next prime is 142224539. The reversal of 142224532 is 235422241.

142224532 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 124634896 + 17589636 = 11164^2 + 4194^2 .

It is a junction number, because it is equal to n+sod(n) for n = 142224497 and 142224506.

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, 17778063 + ... + 17778070.

Almost surely, 2^142224532 is an apocalyptic number.

It is an amenable number.

142224532 is a deficient number, since it is larger than the sum of its proper divisors (106668406).

142224532 is a wasteful number, since it uses less digits than its factorization.

142224532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35556137 (or 35556135 counting only the distinct ones).

The product of its digits is 3840, while the sum is 25.

The square root of 142224532 is about 11925.7927199830. The cubic root of 142224532 is about 521.9851779138.

Adding to 142224532 its reverse (235422241), we get a palindrome (377646773).

The spelling of 142224532 in words is "one hundred forty-two million, two hundred twenty-four thousand, five hundred thirty-two".