128413933 has 2 divisors, whose sum is σ = 128413934. Its totient is φ = 128413932.

The previous prime is 128413931. The next prime is 128413963. The reversal of 128413933 is 339314821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127644804 + 769129 = 11298^2 + 877^2 .

It is a cyclic number.

It is not a de Polignac number, because 128413933 - 2¹ = 128413931 is a prime.

Together with 128413931, 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 (128413931) 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, 64206966 + 64206967.

It is an arithmetic number, because the mean of its divisors is an integer number (64206967).

Almost surely, 2^128413933 is an apocalyptic number.

It is an amenable number.

128413933 is a deficient number, since it is larger than the sum of its proper divisors (1).

128413933 is an equidigital number, since it uses as much as digits as its factorization.

128413933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 128413933 is about 11331.9871602469. The cubic root of 128413933 is about 504.5110884287.

The spelling of 128413933 in words is "one hundred twenty-eight million, four hundred thirteen thousand, nine hundred thirty-three".