128553298 has 4 divisors (see below), whose sum is σ = 192829950. Its totient is φ = 64276648.

The previous prime is 128553289. The next prime is 128553329. The reversal of 128553298 is 892355821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 123943689 + 4609609 = 11133^2 + 2147^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 32138323 + ... + 32138326.

Almost surely, 2^128553298 is an apocalyptic number.

128553298 is a deficient number, since it is larger than the sum of its proper divisors (64276652).

128553298 is an equidigital number, since it uses as much as digits as its factorization.

128553298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64276651.

The product of its digits is 172800, while the sum is 43.

The square root of 128553298 is about 11338.1346790378. The cubic root of 128553298 is about 504.6935342785.

The spelling of 128553298 in words is "one hundred twenty-eight million, five hundred fifty-three thousand, two hundred ninety-eight".