21741514 has 4 divisors (see below), whose sum is σ = 32612274. Its totient is φ = 10870756.

The previous prime is 21741493. The next prime is 21741523. The reversal of 21741514 is 41514712.

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., 18619225 + 3122289 = 4315^2 + 1767^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5435377 + ... + 5435380.

Almost surely, 2^21741514 is an apocalyptic number.

21741514 is a deficient number, since it is larger than the sum of its proper divisors (10870760).

21741514 is a wasteful number, since it uses less digits than its factorization.

21741514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10870759.

The product of its digits is 1120, while the sum is 25.

The square root of 21741514 is about 4662.7796430884. The cubic root of 21741514 is about 279.1022008815.

The spelling of 21741514 in words is "twenty-one million, seven hundred forty-one thousand, five hundred fourteen".