142112268 has 72 divisors (see below), whose sum is σ = 366912000. Its totient is φ = 46370016.

The previous prime is 142112261. The next prime is 142112279. The reversal of 142112268 is 862211241.

It is a super-2 number, since 2×142112268² = 40391793432207648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142112261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 594493 + ... + 594731.

It is an arithmetic number, because the mean of its divisors is an integer number (5096000).

Almost surely, 2^142112268 is an apocalyptic number.

142112268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142112268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183456000).

142112268 is an abundant number, since it is smaller than the sum of its proper divisors (224799732).

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

142112268 is a wasteful number, since it uses less digits than its factorization.

142112268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 526 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 142112268 is about 11921.0850177322. The cubic root of 142112268 is about 521.8477999043.

It can be divided in two parts, 1421 and 12268, that added together give a square (13689 = 117²).

The spelling of 142112268 in words is "one hundred forty-two million, one hundred twelve thousand, two hundred sixty-eight".