28151 has 2 divisors, whose sum is σ = 28152. Its totient is φ = 28150.

The previous prime is 28123. The next prime is 28163. The reversal of 28151 is 15182.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28151 - 2⁶ = 28087 is a prime.

It is a Chen prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14075 + 14076.

It is an arithmetic number, because the mean of its divisors is an integer number (14076).

2²⁸¹⁵¹ is an apocalyptic number.

28151 is a deficient number, since it is larger than the sum of its proper divisors (1).

28151 is an equidigital number, since it uses as much as digits as its factorization.

28151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80, while the sum is 17.

The square root of 28151 is about 167.7825974289. The cubic root of 28151 is about 30.4203781881.

The spelling of 28151 in words is "twenty-eight thousand, one hundred fifty-one".