28526129 has 2 divisors, whose sum is σ = 28526130. Its totient is φ = 28526128.

The previous prime is 28526123. The next prime is 28526171. The reversal of 28526129 is 92162582.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28302400 + 223729 = 5320^2 + 473^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28526129 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28526123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14263064 + 14263065.

It is an arithmetic number, because the mean of its divisors is an integer number (14263065).

Almost surely, 2^28526129 is an apocalyptic number.

It is an amenable number.

28526129 is a deficient number, since it is larger than the sum of its proper divisors (1).

28526129 is an equidigital number, since it uses as much as digits as its factorization.

28526129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 35.

The square root of 28526129 is about 5340.9857704360. The cubic root of 28526129 is about 305.5490566894.

The spelling of 28526129 in words is "twenty-eight million, five hundred twenty-six thousand, one hundred twenty-nine".