28269151 has 2 divisors, whose sum is σ = 28269152. Its totient is φ = 28269150.

The previous prime is 28269149. The next prime is 28269167. The reversal of 28269151 is 15196282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28269151 - 2¹ = 28269149 is a prime.

Together with 28269149, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28269121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14134575 + 14134576.

It is an arithmetic number, because the mean of its divisors is an integer number (14134576).

Almost surely, 2^28269151 is an apocalyptic number.

28269151 is a deficient number, since it is larger than the sum of its proper divisors (1).

28269151 is an equidigital number, since it uses as much as digits as its factorization.

28269151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 34.

The square root of 28269151 is about 5316.8741756788. The cubic root of 28269151 is about 304.6287734688.

The spelling of 28269151 in words is "twenty-eight million, two hundred sixty-nine thousand, one hundred fifty-one".