128167001 has 8 divisors (see below), whose sum is σ = 132141504. Its totient is φ = 124219440.

The previous prime is 128166991. The next prime is 128167007. The reversal of 128167001 is 100761821.

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 128167001 - 2⁶ = 128166937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128167007) 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, 3146 + ... + 16316.

It is an arithmetic number, because the mean of its divisors is an integer number (16517688).

Almost surely, 2^128167001 is an apocalyptic number.

It is an amenable number.

128167001 is a deficient number, since it is larger than the sum of its proper divisors (3974503).

128167001 is a wasteful number, since it uses less digits than its factorization.

128167001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13471.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 128167001 is about 11321.0865644601. The cubic root of 128167001 is about 504.1874997865.

The spelling of 128167001 in words is "one hundred twenty-eight million, one hundred sixty-seven thousand, one".