228142 has 8 divisors (see below), whose sum is σ = 351576. Its totient is φ = 110952.

The previous prime is 228139. The next prime is 228181. The reversal of 228142 is 241822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1468 + ... + 1615.

It is an arithmetic number, because the mean of its divisors is an integer number (43947).

2²²⁸¹⁴² is an apocalyptic number.

228142 is a deficient number, since it is larger than the sum of its proper divisors (123434).

228142 is a wasteful number, since it uses less digits than its factorization.

228142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122.

The product of its digits is 256, while the sum is 19.

The square root of 228142 is about 477.6421254454. The cubic root of 228142 is about 61.1038274760.

Adding to 228142 its reverse (241822), we get a palindrome (469964).

The spelling of 228142 in words is "two hundred twenty-eight thousand, one hundred forty-two".