142142456 has 48 divisors (see below), whose sum is σ = 283980840. Its totient is φ = 66648960.

The previous prime is 142142381. The next prime is 142142479. The reversal of 142142456 is 654241241.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 248651 + ... + 249221.

Almost surely, 2^142142456 is an apocalyptic number.

It is an amenable number.

142142456 is a deficient number, since it is larger than the sum of its proper divisors (141838384).

142142456 is a wasteful number, since it uses less digits than its factorization.

142142456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672 (or 639 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 142142456 is about 11922.3511104144. The cubic root of 142142456 is about 521.8847482181.

Adding to 142142456 its reverse (654241241), we get a palindrome (796383697).

The spelling of 142142456 in words is "one hundred forty-two million, one hundred forty-two thousand, four hundred fifty-six".