21275314 has 8 divisors (see below), whose sum is σ = 32389488. Its totient is φ = 10478820.

The previous prime is 21275311. The next prime is 21275321. The reversal of 21275314 is 41357212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21275311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79252 + ... + 79519.

It is an arithmetic number, because the mean of its divisors is an integer number (4048686).

Almost surely, 2^21275314 is an apocalyptic number.

21275314 is a deficient number, since it is larger than the sum of its proper divisors (11114174).

21275314 is a wasteful number, since it uses less digits than its factorization.

21275314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158840.

The product of its digits is 1680, while the sum is 25.

The square root of 21275314 is about 4612.5171002393. The cubic root of 21275314 is about 277.0928542202.

The spelling of 21275314 in words is "twenty-one million, two hundred seventy-five thousand, three hundred fourteen".