128893267 has 2 divisors, whose sum is σ = 128893268. Its totient is φ = 128893266.

The previous prime is 128893243. The next prime is 128893301. The reversal of 128893267 is 762398821.

It is a weak prime.

It is an emirp because it is prime and its reverse (762398821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128893267 is a prime.

It is a super-2 number, since 2×128893267² = 33226948555866578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (128891267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64446633 + 64446634.

It is an arithmetic number, because the mean of its divisors is an integer number (64446634).

Almost surely, 2^128893267 is an apocalyptic number.

128893267 is a deficient number, since it is larger than the sum of its proper divisors (1).

128893267 is an equidigital number, since it uses as much as digits as its factorization.

128893267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 46.

The square root of 128893267 is about 11353.1170609661. The cubic root of 128893267 is about 505.1380428426.

The spelling of 128893267 in words is "one hundred twenty-eight million, eight hundred ninety-three thousand, two hundred sixty-seven".