28141142 has 4 divisors (see below), whose sum is σ = 42211716. Its totient is φ = 14070570.

The previous prime is 28141133. The next prime is 28141153. The reversal of 28141142 is 24114182.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24114182 = 2 ⋅12057091.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7035284 + ... + 7035287.

It is an arithmetic number, because the mean of its divisors is an integer number (10552929).

Almost surely, 2^28141142 is an apocalyptic number.

28141142 is a deficient number, since it is larger than the sum of its proper divisors (14070574).

28141142 is a wasteful number, since it uses less digits than its factorization.

28141142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14070573.

The product of its digits is 512, while the sum is 23.

The square root of 28141142 is about 5304.8225229502. The cubic root of 28141142 is about 304.1682687433.

The spelling of 28141142 in words is "twenty-eight million, one hundred forty-one thousand, one hundred forty-two".