128893269 has 16 divisors (see below), whose sum is σ = 182710080. Its totient is φ = 80544000.

The previous prime is 128893267. The next prime is 128893301. The reversal of 128893269 is 962398821.

It is not a de Polignac number, because 128893269 - 2¹ = 128893267 is a prime.

It is a super-2 number, since 2×128893269² = 33226949587012722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128893267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7767 + ... + 17835.

It is an arithmetic number, because the mean of its divisors is an integer number (11419380).

Almost surely, 2^128893269 is an apocalyptic number.

It is an amenable number.

128893269 is a deficient number, since it is larger than the sum of its proper divisors (53816811).

128893269 is a wasteful number, since it uses less digits than its factorization.

128893269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10340.

The product of its digits is 373248, while the sum is 48.

The square root of 128893269 is about 11353.1171490477. The cubic root of 128893269 is about 505.1380454553.

The spelling of 128893269 in words is "one hundred twenty-eight million, eight hundred ninety-three thousand, two hundred sixty-nine".