281842142 has 16 divisors (see below), whose sum is σ = 439344000. Its totient is φ = 135455520.

The previous prime is 281842139. The next prime is 281842147. The reversal of 281842142 is 241248182.

281842142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 281842099 and 281842108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281842147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6017 + ... + 24492.

It is an arithmetic number, because the mean of its divisors is an integer number (27459000).

Almost surely, 2^281842142 is an apocalyptic number.

281842142 is a deficient number, since it is larger than the sum of its proper divisors (157501858).

281842142 is a wasteful number, since it uses less digits than its factorization.

281842142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30691.

The product of its digits is 8192, while the sum is 32.

The square root of 281842142 is about 16788.1548122478. The cubic root of 281842142 is about 655.6448339557.

The spelling of 281842142 in words is "two hundred eighty-one million, eight hundred forty-two thousand, one hundred forty-two".