128325957 has 16 divisors (see below), whose sum is σ = 182714880. Its totient is φ = 79934400.

The previous prime is 128325937. The next prime is 128325959. The reversal of 128325957 is 759523821.

It is a happy number.

It is not a de Polignac number, because 128325957 - 2¹² = 128321861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128325959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21094 + ... + 26487.

It is an arithmetic number, because the mean of its divisors is an integer number (11419680).

Almost surely, 2^128325957 is an apocalyptic number.

It is an amenable number.

128325957 is a deficient number, since it is larger than the sum of its proper divisors (54388923).

128325957 is a wasteful number, since it uses less digits than its factorization.

128325957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47644.

The product of its digits is 151200, while the sum is 42.

The square root of 128325957 is about 11328.1047399819. The cubic root of 128325957 is about 504.3958490972.

The spelling of 128325957 in words is "one hundred twenty-eight million, three hundred twenty-five thousand, nine hundred fifty-seven".