21267314 has 4 divisors (see below), whose sum is σ = 31900974. Its totient is φ = 10633656.

The previous prime is 21267263. The next prime is 21267371. The reversal of 21267314 is 41376212.

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

It can be written as a sum of positive squares in only one way, i.e., 18966025 + 2301289 = 4355^2 + 1517^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5316827 + ... + 5316830.

Almost surely, 2^21267314 is an apocalyptic number.

21267314 is a deficient number, since it is larger than the sum of its proper divisors (10633660).

21267314 is a wasteful number, since it uses less digits than its factorization.

21267314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10633659.

The product of its digits is 2016, while the sum is 26.

The square root of 21267314 is about 4611.6498132447. The cubic root of 21267314 is about 277.0581188028.

The spelling of 21267314 in words is "twenty-one million, two hundred sixty-seven thousand, three hundred fourteen".