142431424 has 14 divisors (see below), whose sum is σ = 282637484. Its totient is φ = 71215680.

The previous prime is 142431409. The next prime is 142431427. The reversal of 142431424 is 424134241.

It is not an unprimeable number, because it can be changed into a prime (142431427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1112682 + ... + 1112809.

Almost surely, 2^142431424 is an apocalyptic number.

It is an amenable number.

142431424 is a deficient number, since it is larger than the sum of its proper divisors (140206060).

142431424 is an equidigital number, since it uses as much as digits as its factorization.

142431424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225503 (or 2225493 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 142431424 is about 11934.4637081018. The cubic root of 142431424 is about 522.2381634153.

Adding to 142431424 its reverse (424134241), we get a palindrome (566565665).

The spelling of 142431424 in words is "one hundred forty-two million, four hundred thirty-one thousand, four hundred twenty-four".