128165147 has 8 divisors (see below), whose sum is σ = 140626800. Its totient is φ = 115838560.

The previous prime is 128165137. The next prime is 128165173. The reversal of 128165147 is 741561821.

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 128165147 - 2¹⁶ = 128099611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128165137) 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, 31772 + ... + 35577.

It is an arithmetic number, because the mean of its divisors is an integer number (17578350).

Almost surely, 2^128165147 is an apocalyptic number.

128165147 is a deficient number, since it is larger than the sum of its proper divisors (12461653).

128165147 is a wasteful number, since it uses less digits than its factorization.

128165147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67533.

The product of its digits is 13440, while the sum is 35.

The square root of 128165147 is about 11321.0046815643. The cubic root of 128165147 is about 504.1850686663.

The spelling of 128165147 in words is "one hundred twenty-eight million, one hundred sixty-five thousand, one hundred forty-seven".