128226371 has 16 divisors (see below), whose sum is σ = 163262400. Its totient is φ = 97953408.

The previous prime is 128226367. The next prime is 128226377. The reversal of 128226371 is 173622821.

It is not a de Polignac number, because 128226371 - 2² = 128226367 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128226377) 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, 21656 + ... + 26933.

It is an arithmetic number, because the mean of its divisors is an integer number (10203900).

Almost surely, 2^128226371 is an apocalyptic number.

128226371 is a deficient number, since it is larger than the sum of its proper divisors (35036029).

128226371 is a wasteful number, since it uses less digits than its factorization.

128226371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48638.

The product of its digits is 8064, while the sum is 32.

The square root of 128226371 is about 11323.7083590138. The cubic root of 128226371 is about 504.2653383118.

The spelling of 128226371 in words is "one hundred twenty-eight million, two hundred twenty-six thousand, three hundred seventy-one".