16975121 has 8 divisors (see below), whose sum is σ = 17734080. Its totient is φ = 16227792.

The previous prime is 16975117. The next prime is 16975139. The reversal of 16975121 is 12157961.

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 16975121 - 2² = 16975117 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16975921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146 + ... + 5828.

It is an arithmetic number, because the mean of its divisors is an integer number (2216760).

Almost surely, 2^16975121 is an apocalyptic number.

It is an amenable number.

16975121 is a deficient number, since it is larger than the sum of its proper divisors (758959).

16975121 is a wasteful number, since it uses less digits than its factorization.

16975121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5815.

The product of its digits is 3780, while the sum is 32.

The square root of 16975121 is about 4120.0874990709. The cubic root of 16975121 is about 257.0026646607.

The spelling of 16975121 in words is "sixteen million, nine hundred seventy-five thousand, one hundred twenty-one".