142128336 has 40 divisors (see below), whose sum is σ = 419617984. Its totient is φ = 40608000.

The previous prime is 142128271. The next prime is 142128383. The reversal of 142128336 is 633821241.

142128336 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211165 + ... + 211836.

Almost surely, 2^142128336 is an apocalyptic number.

142128336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

142128336 is an abundant number, since it is smaller than the sum of its proper divisors (277489648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142128336 is a wasteful number, since it uses less digits than its factorization.

142128336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423019 (or 423013 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 142128336 is about 11921.7589306276. The cubic root of 142128336 is about 521.8674668304.

Adding to 142128336 its reverse (633821241), we get a palindrome (775949577).

The spelling of 142128336 in words is "one hundred forty-two million, one hundred twenty-eight thousand, three hundred thirty-six".