128069165 has 16 divisors (see below), whose sum is σ = 176318208. Its totient is φ = 87478656.

The previous prime is 128069141. The next prime is 128069171. The reversal of 128069165 is 561960821.

It is a cyclic number.

It is not a de Polignac number, because 128069165 - 2¹⁰ = 128068141 is a prime.

It is a super-2 number, since 2×128069165² = 32803422047594450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2249 + ... + 16161.

It is an arithmetic number, because the mean of its divisors is an integer number (11019888).

Almost surely, 2^128069165 is an apocalyptic number.

It is an amenable number.

128069165 is a deficient number, since it is larger than the sum of its proper divisors (48249043).

128069165 is a wasteful number, since it uses less digits than its factorization.

128069165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14188.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 128069165 is about 11316.7647762070. The cubic root of 128069165 is about 504.0591769874.

The spelling of 128069165 in words is "one hundred twenty-eight million, sixty-nine thousand, one hundred sixty-five".