128416245 has 32 divisors (see below), whose sum is σ = 215136000. Its totient is φ = 65286144.

The previous prime is 128416241. The next prime is 128416247. The reversal of 128416245 is 542614821.

It is a happy number.

It is not a de Polignac number, because 128416245 - 2² = 128416241 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128416241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154491 + ... + 155319.

It is an arithmetic number, because the mean of its divisors is an integer number (6723000).

Almost surely, 2^128416245 is an apocalyptic number.

128416245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

128416245 is a deficient number, since it is larger than the sum of its proper divisors (86719755).

128416245 is a wasteful number, since it uses less digits than its factorization.

128416245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309.

The product of its digits is 15360, while the sum is 33.

The square root of 128416245 is about 11332.0891719047. The cubic root of 128416245 is about 504.5141161963.

The spelling of 128416245 in words is "one hundred twenty-eight million, four hundred sixteen thousand, two hundred forty-five".