20914 has 4 divisors (see below), whose sum is σ = 31374. Its totient is φ = 10456.

The previous prime is 20903. The next prime is 20921. The reversal of 20914 is 41902.

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

It can be written as a sum of positive squares in only one way, i.e., 13689 + 7225 = 117^2 + 85^2 .

It is a plaindrome in base 14.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5227 + ... + 5230.

2²⁰⁹¹⁴ is an apocalyptic number.

20914 is a deficient number, since it is larger than the sum of its proper divisors (10460).

20914 is a wasteful number, since it uses less digits than its factorization.

20914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10459.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 20914 is about 144.6167348546. The cubic root of 20914 is about 27.5515287310.

It can be divided in two parts, 209 and 14, that multiplied together give a triangular number (2926 = T₇₆).

The spelling of 20914 in words is "twenty thousand, nine hundred fourteen".