128205627 has 8 divisors (see below), whose sum is σ = 186480960. Its totient is φ = 77700360.

The previous prime is 128205617. The next prime is 128205667. The reversal of 128205627 is 726502821.

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

It is not a de Polignac number, because 128205627 - 2¹⁶ = 128140091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 3885019 = 128205627 / (1 + 2 + 8 + 2 + 0 + 5 + 6 + 2 + 7).

It is not an unprimeable number, because it can be changed into a prime (128205617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1942477 + ... + 1942542.

It is an arithmetic number, because the mean of its divisors is an integer number (23310120).

Almost surely, 2^128205627 is an apocalyptic number.

128205627 is a deficient number, since it is larger than the sum of its proper divisors (58275333).

128205627 is a wasteful number, since it uses less digits than its factorization.

128205627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3885033.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 128205627 is about 11322.7923676097. The cubic root of 128205627 is about 504.2381441025.

The spelling of 128205627 in words is "one hundred twenty-eight million, two hundred five thousand, six hundred twenty-seven".