128133274 has 8 divisors (see below), whose sum is σ = 194907168. Its totient is φ = 63164220.

The previous prime is 128133263. The next prime is 128133287. The reversal of 128133274 is 472331821.

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

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 in 3 ways as a sum of consecutive naturals, for example, 451032 + ... + 451315.

It is an arithmetic number, because the mean of its divisors is an integer number (24363396).

Almost surely, 2^128133274 is an apocalyptic number.

128133274 is a deficient number, since it is larger than the sum of its proper divisors (66773894).

128133274 is an equidigital number, since it uses as much as digits as its factorization.

128133274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902420.

The product of its digits is 8064, while the sum is 31.

The square root of 128133274 is about 11319.5969009501. The cubic root of 128133274 is about 504.1432704516.

The spelling of 128133274 in words is "one hundred twenty-eight million, one hundred thirty-three thousand, two hundred seventy-four".