142821712 has 40 divisors (see below), whose sum is σ = 311622912. Its totient is φ = 62822400.

The previous prime is 142821677. The next prime is 142821821. The reversal of 142821712 is 217128241.

It is a super-2 number, since 2×142821712² = 40796082837221888, which contains 22 as substring.

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, 7633 + ... + 18544.

Almost surely, 2^142821712 is an apocalyptic number.

It is an amenable number.

142821712 is an abundant number, since it is smaller than the sum of its proper divisors (168801200).

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

142821712 is a wasteful number, since it uses less digits than its factorization.

142821712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26227 (or 26221 counting only the distinct ones).

The product of its digits is 1792, while the sum is 28.

The square root of 142821712 is about 11950.8038223376. The cubic root of 142821712 is about 522.7147375554.

Adding to 142821712 its reverse (217128241), we get a palindrome (359949953).

The spelling of 142821712 in words is "one hundred forty-two million, eight hundred twenty-one thousand, seven hundred twelve".