128330357 has 2 divisors, whose sum is σ = 128330358. Its totient is φ = 128330356.

The previous prime is 128330353. The next prime is 128330381. The reversal of 128330357 is 753033821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128006596 + 323761 = 11314^2 + 569^2 .

It is a cyclic number.

It is not a de Polignac number, because 128330357 - 2² = 128330353 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128330353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64165178 + 64165179.

It is an arithmetic number, because the mean of its divisors is an integer number (64165179).

Almost surely, 2^128330357 is an apocalyptic number.

It is an amenable number.

128330357 is a deficient number, since it is larger than the sum of its proper divisors (1).

128330357 is an equidigital number, since it uses as much as digits as its factorization.

128330357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 128330357 is about 11328.2989455611. The cubic root of 128330357 is about 504.4016138867.

The spelling of 128330357 in words is "one hundred twenty-eight million, three hundred thirty thousand, three hundred fifty-seven".