16146971 has 4 divisors (see below), whose sum is σ = 16306944. Its totient is φ = 15987000.

The previous prime is 16146967. The next prime is 16146983. The reversal of 16146971 is 17964161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17964161 = 131 ⋅137131.

It is a cyclic number.

It is not a de Polignac number, because 16146971 - 2² = 16146967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16146901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79835 + ... + 80036.

It is an arithmetic number, because the mean of its divisors is an integer number (4076736).

Almost surely, 2^16146971 is an apocalyptic number.

16146971 is a deficient number, since it is larger than the sum of its proper divisors (159973).

16146971 is a wasteful number, since it uses less digits than its factorization.

16146971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159972.

The product of its digits is 9072, while the sum is 35.

The square root of 16146971 is about 4018.3293792321. The cubic root of 16146971 is about 252.7534089601.

The spelling of 16146971 in words is "sixteen million, one hundred forty-six thousand, nine hundred seventy-one".