16140671 has 6 divisors (see below), whose sum is σ = 17035272. Its totient is φ = 15290820.

The previous prime is 16140659. The next prime is 16140679. The reversal of 16140671 is 17604161.

It is a de Polignac number, because none of the positive numbers 2^k-16140671 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16140671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16140679) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21995 + ... + 22716.

It is an arithmetic number, because the mean of its divisors is an integer number (2839212).

Almost surely, 2^16140671 is an apocalyptic number.

16140671 is a deficient number, since it is larger than the sum of its proper divisors (894601).

16140671 is an equidigital number, since it uses as much as digits as its factorization.

16140671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44749 (or 44730 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 16140671 is about 4017.5453948898. The cubic root of 16140671 is about 252.7205327504.

The spelling of 16140671 in words is "sixteen million, one hundred forty thousand, six hundred seventy-one".