28142159 has 2 divisors, whose sum is σ = 28142160. Its totient is φ = 28142158.

The previous prime is 28142137. The next prime is 28142161. The reversal of 28142159 is 95124182.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28142159 - 2¹² = 28138063 is a prime.

It is a super-2 number, since 2×28142159² = 1583962226362562, which contains 22 as substring.

Together with 28142161, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28142119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14071079 + 14071080.

It is an arithmetic number, because the mean of its divisors is an integer number (14071080).

Almost surely, 2^28142159 is an apocalyptic number.

28142159 is a deficient number, since it is larger than the sum of its proper divisors (1).

28142159 is an equidigital number, since it uses as much as digits as its factorization.

28142159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 32.

The square root of 28142159 is about 5304.9183782599. The cubic root of 28142159 is about 304.1719328377.

The spelling of 28142159 in words is "twenty-eight million, one hundred forty-two thousand, one hundred fifty-nine".