128602953 has 12 divisors (see below), whose sum is σ = 187848180. Its totient is φ = 84771456.

The previous prime is 128602933. The next prime is 128602987. The reversal of 128602953 is 359206821.

It can be written as a sum of positive squares in 2 ways, for example, as 66634569 + 61968384 = 8163^2 + 7872^2 .

It is not a de Polignac number, because 128602953 - 2⁵ = 128602921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128602933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79476 + ... + 81077.

It is an arithmetic number, because the mean of its divisors is an integer number (15654015).

Almost surely, 2^128602953 is an apocalyptic number.

It is an amenable number.

128602953 is a deficient number, since it is larger than the sum of its proper divisors (59245227).

128602953 is a wasteful number, since it uses less digits than its factorization.

128602953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160648 (or 160645 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 128602953 is about 11340.3242017149. The cubic root of 128602953 is about 504.7585068927.

The spelling of 128602953 in words is "one hundred twenty-eight million, six hundred two thousand, nine hundred fifty-three".