128379201 has 16 divisors (see below), whose sum is σ = 177456960. Its totient is φ = 82456640.

The previous prime is 128379157. The next prime is 128379211. The reversal of 128379201 is 102973821.

It is a cyclic number.

It is not a de Polignac number, because 128379201 - 2⁷ = 128379073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128379211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47671 + ... + 50291.

It is an arithmetic number, because the mean of its divisors is an integer number (11091060).

Almost surely, 2^128379201 is an apocalyptic number.

It is an amenable number.

128379201 is a deficient number, since it is larger than the sum of its proper divisors (49077759).

128379201 is a wasteful number, since it uses less digits than its factorization.

128379201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3216.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 128379201 is about 11330.4545804659. The cubic root of 128379201 is about 504.4655994418.

The spelling of 128379201 in words is "one hundred twenty-eight million, three hundred seventy-nine thousand, two hundred one".