128860051 has 8 divisors (see below), whose sum is σ = 136884384. Its totient is φ = 120885120.

The previous prime is 128860037. The next prime is 128860063. The reversal of 128860051 is 150068821.

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

It is a cyclic number.

It is not a de Polignac number, because 128860051 - 2⁵ = 128860019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128859995 and 128860022.

It is not an unprimeable number, because it can be changed into a prime (128860031) 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, 6900 + ... + 17473.

It is an arithmetic number, because the mean of its divisors is an integer number (17110548).

Almost surely, 2^128860051 is an apocalyptic number.

128860051 is a deficient number, since it is larger than the sum of its proper divisors (8024333).

128860051 is a wasteful number, since it uses less digits than its factorization.

128860051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24701.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 128860051 is about 11351.6541085429. The cubic root of 128860051 is about 505.0946474889.

The spelling of 128860051 in words is "one hundred twenty-eight million, eight hundred sixty thousand, fifty-one".