128395514 has 8 divisors (see below), whose sum is σ = 207408180. Its totient is φ = 59259456.

The previous prime is 128395511. The next prime is 128395523. The reversal of 128395514 is 415593821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 119793025 + 8602489 = 10945^2 + 2933^2 .

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

It is not an unprimeable number, because it can be changed into a prime (128395511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2469119 + ... + 2469170.

Almost surely, 2^128395514 is an apocalyptic number.

128395514 is a deficient number, since it is larger than the sum of its proper divisors (79012666).

128395514 is a wasteful number, since it uses less digits than its factorization.

128395514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4938304.

The product of its digits is 43200, while the sum is 38.

The square root of 128395514 is about 11331.1744316289. The cubic root of 128395514 is about 504.4869658280.

The spelling of 128395514 in words is "one hundred twenty-eight million, three hundred ninety-five thousand, five hundred fourteen".