21314134 has 4 divisors (see below), whose sum is σ = 31971204. Its totient is φ = 10657066.

The previous prime is 21314087. The next prime is 21314149. The reversal of 21314134 is 43141312.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5328532 + ... + 5328535.

It is an arithmetic number, because the mean of its divisors is an integer number (7992801).

Almost surely, 2^21314134 is an apocalyptic number.

21314134 is a deficient number, since it is larger than the sum of its proper divisors (10657070).

21314134 is a wasteful number, since it uses less digits than its factorization.

21314134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10657069.

The product of its digits is 288, while the sum is 19.

The square root of 21314134 is about 4616.7232968849. The cubic root of 21314134 is about 277.2612843046.

Adding to 21314134 its reverse (43141312), we get a palindrome (64455446).

The spelling of 21314134 in words is "twenty-one million, three hundred fourteen thousand, one hundred thirty-four".