128404051 has 2 divisors, whose sum is σ = 128404052. Its totient is φ = 128404050.

The previous prime is 128404037. The next prime is 128404057. The reversal of 128404051 is 150404821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128404051 - 2⁵ = 128404019 is a prime.

It is not a weakly prime, because it can be changed into another prime (128404057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64202025 + 64202026.

It is an arithmetic number, because the mean of its divisors is an integer number (64202026).

Almost surely, 2^128404051 is an apocalyptic number.

128404051 is a deficient number, since it is larger than the sum of its proper divisors (1).

128404051 is an equidigital number, since it uses as much as digits as its factorization.

128404051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 128404051 is about 11331.5511294791. The cubic root of 128404051 is about 504.4981466698.

Adding to 128404051 its reverse (150404821), we get a palindrome (278808872).

The spelling of 128404051 in words is "one hundred twenty-eight million, four hundred four thousand, fifty-one".