128274051 has 8 divisors (see below), whose sum is σ = 171092304. Its totient is φ = 85485920.

The previous prime is 128274043. The next prime is 128274071. The reversal of 128274051 is 150472821.

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 128274051 - 2³ = 128274043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128274011) 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, 5761 + ... + 17021.

It is an arithmetic number, because the mean of its divisors is an integer number (21386538).

Almost surely, 2^128274051 is an apocalyptic number.

128274051 is a deficient number, since it is larger than the sum of its proper divisors (42818253).

128274051 is a wasteful number, since it uses less digits than its factorization.

128274051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15061.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 128274051 is about 11325.8134807174. The cubic root of 128274051 is about 504.3278329756.

The spelling of 128274051 in words is "one hundred twenty-eight million, two hundred seventy-four thousand, fifty-one".