128614287 has 16 divisors (see below), whose sum is σ = 180752000. Its totient is φ = 81121824.

The previous prime is 128614271. The next prime is 128614301. The reversal of 128614287 is 782416821.

It is a happy number.

It is not a de Polignac number, because 128614287 - 2⁴ = 128614271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120614287) 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 15 ways as a sum of consecutive naturals, for example, 80664 + ... + 82242.

It is an arithmetic number, because the mean of its divisors is an integer number (11297000).

Almost surely, 2^128614287 is an apocalyptic number.

128614287 is a deficient number, since it is larger than the sum of its proper divisors (52137713).

128614287 is a wasteful number, since it uses less digits than its factorization.

128614287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030.

The product of its digits is 43008, while the sum is 39.

The square root of 128614287 is about 11340.8239118681. The cubic root of 128614287 is about 504.7733348696.

The spelling of 128614287 in words is "one hundred twenty-eight million, six hundred fourteen thousand, two hundred eighty-seven".