21134514 has 16 divisors (see below), whose sum is σ = 42323040. Its totient is φ = 7035840.

The previous prime is 21134513. The next prime is 21134521. The reversal of 21134514 is 41543112.

It is not an unprimeable number, because it can be changed into a prime (21134513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4309 + ... + 7799.

It is an arithmetic number, because the mean of its divisors is an integer number (2645190).

Almost surely, 2^21134514 is an apocalyptic number.

21134514 is an abundant number, since it is smaller than the sum of its proper divisors (21188526).

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

21134514 is a wasteful number, since it uses less digits than its factorization.

21134514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4505.

The product of its digits is 480, while the sum is 21.

The square root of 21134514 is about 4597.2289479642. The cubic root of 21134514 is about 276.4802340717.

Adding to 21134514 its reverse (41543112), we get a palindrome (62677626).

The spelling of 21134514 in words is "twenty-one million, one hundred thirty-four thousand, five hundred fourteen".