142112456 has 16 divisors (see below), whose sum is σ = 268907100. Its totient is φ = 70403904.

The previous prime is 142112447. The next prime is 142112461. The reversal of 142112456 is 654211241.

It can be written as a sum of positive squares in 2 ways, for example, as 120340900 + 21771556 = 10970^2 + 4666^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80615 + ... + 82358.

Almost surely, 2^142112456 is an apocalyptic number.

It is an amenable number.

142112456 is a deficient number, since it is larger than the sum of its proper divisors (126794644).

142112456 is a wasteful number, since it uses less digits than its factorization.

142112456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163088 (or 163084 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 142112456 is about 11921.0929029179. The cubic root of 142112456 is about 521.8480300213.

Adding to 142112456 its reverse (654211241), we get a palindrome (796323697).

The spelling of 142112456 in words is "one hundred forty-two million, one hundred twelve thousand, four hundred fifty-six".