21114862 has 4 divisors (see below), whose sum is σ = 31672296. Its totient is φ = 10557430.

The previous prime is 21114853. The next prime is 21114869. The reversal of 21114862 is 26841112.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21114869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5278714 + ... + 5278717.

It is an arithmetic number, because the mean of its divisors is an integer number (7918074).

Almost surely, 2^21114862 is an apocalyptic number.

21114862 is a deficient number, since it is larger than the sum of its proper divisors (10557434).

21114862 is a wasteful number, since it uses less digits than its factorization.

21114862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10557433.

The product of its digits is 768, while the sum is 25.

The square root of 21114862 is about 4595.0910763553. The cubic root of 21114862 is about 276.3945121334.

Adding to 21114862 its reverse (26841112), we get a palindrome (47955974).

The spelling of 21114862 in words is "twenty-one million, one hundred fourteen thousand, eight hundred sixty-two".