16751 has 4 divisors (see below), whose sum is σ = 19152. Its totient is φ = 14352.

The previous prime is 16747. The next prime is 16759. The reversal of 16751 is 15761.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16751 - 2² = 16747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1190 + ... + 1203.

It is an arithmetic number, because the mean of its divisors is an integer number (4788).

2¹⁶⁷⁵¹ is an apocalyptic number.

16751 is a deficient number, since it is larger than the sum of its proper divisors (2401).

16751 is an equidigital number, since it uses as much as digits as its factorization.

16751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400.

The product of its digits is 210, while the sum is 20.

The square root of 16751 is about 129.4256543348. The cubic root of 16751 is about 25.5866589015.

Adding to 16751 its product of digits (210), we get a palindrome (16961).

Subtracting from 16751 its reverse (15761), we obtain a triangular number (990 = T₄₄).

It can be divided in two parts, 16 and 751, that added together give a palindrome (767).

The spelling of 16751 in words is "sixteen thousand, seven hundred fifty-one".