16051 has 4 divisors (see below), whose sum is σ = 18352. Its totient is φ = 13752.

The previous prime is 16033. The next prime is 16057. The reversal of 16051 is 15061.

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 16051 - 2⁷ = 15923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16057) 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, 1140 + ... + 1153.

It is an arithmetic number, because the mean of its divisors is an integer number (4588).

2¹⁶⁰⁵¹ is an apocalyptic number.

16051 is a deficient number, since it is larger than the sum of its proper divisors (2301).

16051 is an equidigital number, since it uses as much as digits as its factorization.

16051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 16051 is about 126.6925412169. The cubic root of 16051 is about 25.2251659238.

Subtracting from 16051 its reverse (15061), we obtain a triangular number (990 = T₄₄).

The spelling of 16051 in words is "sixteen thousand, fifty-one".