128262227 has 8 divisors (see below), whose sum is σ = 132749232. Its totient is φ = 123840000.

The previous prime is 128262209. The next prime is 128262257. The reversal of 128262227 is 722262821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128262227 - 2¹² = 128258131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128262193 and 128262202.

It is not an unprimeable number, because it can be changed into a prime (128262257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12149 + ... + 20102.

It is an arithmetic number, because the mean of its divisors is an integer number (16593654).

Almost surely, 2^128262227 is an apocalyptic number.

128262227 is a deficient number, since it is larger than the sum of its proper divisors (4487005).

128262227 is an equidigital number, since it uses as much as digits as its factorization.

128262227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32389.

The product of its digits is 10752, while the sum is 32.

The square root of 128262227 is about 11325.2914752778. The cubic root of 128262227 is about 504.3123365820.

The spelling of 128262227 in words is "one hundred twenty-eight million, two hundred sixty-two thousand, two hundred twenty-seven".