28255141 has 2 divisors, whose sum is σ = 28255142. Its totient is φ = 28255140.

The previous prime is 28255127. The next prime is 28255163. The reversal of 28255141 is 14155282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24295041 + 3960100 = 4929^2 + 1990^2 .

It is a cyclic number.

It is not a de Polignac number, because 28255141 - 2¹⁹ = 27730853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28255111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14127570 + 14127571.

It is an arithmetic number, because the mean of its divisors is an integer number (14127571).

Almost surely, 2^28255141 is an apocalyptic number.

It is an amenable number.

28255141 is a deficient number, since it is larger than the sum of its proper divisors (1).

28255141 is an equidigital number, since it uses as much as digits as its factorization.

28255141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3200, while the sum is 28.

The square root of 28255141 is about 5315.5565089650. The cubic root of 28255141 is about 304.5784411666.

The spelling of 28255141 in words is "twenty-eight million, two hundred fifty-five thousand, one hundred forty-one".