128117414 has 4 divisors (see below), whose sum is σ = 192176124. Its totient is φ = 64058706.

The previous prime is 128117387. The next prime is 128117419. The reversal of 128117414 is 414711821.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128117419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32029352 + ... + 32029355.

It is an arithmetic number, because the mean of its divisors is an integer number (48044031).

Almost surely, 2^128117414 is an apocalyptic number.

128117414 is a deficient number, since it is larger than the sum of its proper divisors (64058710).

128117414 is an equidigital number, since it uses as much as digits as its factorization.

128117414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64058709.

The product of its digits is 1792, while the sum is 29.

The square root of 128117414 is about 11318.8963242889. The cubic root of 128117414 is about 504.1224690835.

The spelling of 128117414 in words is "one hundred twenty-eight million, one hundred seventeen thousand, four hundred fourteen".