28645159 has 2 divisors, whose sum is σ = 28645160. Its totient is φ = 28645158.

The previous prime is 28645129. The next prime is 28645213. The reversal of 28645159 is 95154682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28645159 - 2¹³ = 28636967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28645129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14322579 + 14322580.

It is an arithmetic number, because the mean of its divisors is an integer number (14322580).

Almost surely, 2^28645159 is an apocalyptic number.

28645159 is a deficient number, since it is larger than the sum of its proper divisors (1).

28645159 is an equidigital number, since it uses as much as digits as its factorization.

28645159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 40.

The square root of 28645159 is about 5352.1172446052. The cubic root of 28645159 is about 305.9734516390.

The spelling of 28645159 in words is "twenty-eight million, six hundred forty-five thousand, one hundred fifty-nine".