128945174 has 4 divisors (see below), whose sum is σ = 193417764. Its totient is φ = 64472586.

The previous prime is 128945161. The next prime is 128945177. The reversal of 128945174 is 471549821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 471549821 = 4441 ⋅106181.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128945177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32236292 + ... + 32236295.

It is an arithmetic number, because the mean of its divisors is an integer number (48354441).

Almost surely, 2^128945174 is an apocalyptic number.

128945174 is a deficient number, since it is larger than the sum of its proper divisors (64472590).

128945174 is an equidigital number, since it uses as much as digits as its factorization.

128945174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64472589.

The product of its digits is 80640, while the sum is 41.

The square root of 128945174 is about 11355.4028550290. The cubic root of 128945174 is about 505.2058423019.

The spelling of 128945174 in words is "one hundred twenty-eight million, nine hundred forty-five thousand, one hundred seventy-four".