21114126 has 24 divisors (see below), whose sum is σ = 49906584. Its totient is φ = 6398160.

The previous prime is 21114103. The next prime is 21114127. The reversal of 21114126 is 62141112.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 21114099 and 21114108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21114127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53121 + ... + 53516.

It is an arithmetic number, because the mean of its divisors is an integer number (2079441).

Almost surely, 2^21114126 is an apocalyptic number.

21114126 is an abundant number, since it is smaller than the sum of its proper divisors (28792458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21114126 is a wasteful number, since it uses less digits than its factorization.

21114126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106656 (or 106653 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 21114126 is about 4595.0109901936. The cubic root of 21114126 is about 276.3913006715.

Adding to 21114126 its reverse (62141112), we get a palindrome (83255238).

The spelling of 21114126 in words is "twenty-one million, one hundred fourteen thousand, one hundred twenty-six".