128182829 has 2 divisors, whose sum is σ = 128182830. Its totient is φ = 128182828.

The previous prime is 128182787. The next prime is 128182849. The reversal of 128182829 is 928281821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86062729 + 42120100 = 9277^2 + 6490^2 .

It is a cyclic number.

It is not a de Polignac number, because 128182829 - 2¹⁶ = 128117293 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128182849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64091414 + 64091415.

It is an arithmetic number, because the mean of its divisors is an integer number (64091415).

Almost surely, 2^128182829 is an apocalyptic number.

It is an amenable number.

128182829 is a deficient number, since it is larger than the sum of its proper divisors (1).

128182829 is an equidigital number, since it uses as much as digits as its factorization.

128182829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 41.

The square root of 128182829 is about 11321.7855923878. The cubic root of 128182829 is about 504.2082538318.

The spelling of 128182829 in words is "one hundred twenty-eight million, one hundred eighty-two thousand, eight hundred twenty-nine".