21502114 has 8 divisors (see below), whose sum is σ = 32272848. Its totient is φ = 10744500.

The previous prime is 21502111. The next prime is 21502123. The reversal of 21502114 is 41120512.

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 (21502111) 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, 4849 + ... + 8155.

It is an arithmetic number, because the mean of its divisors is an integer number (4034106).

Almost surely, 2^21502114 is an apocalyptic number.

21502114 is a deficient number, since it is larger than the sum of its proper divisors (10770734).

21502114 is a wasteful number, since it uses less digits than its factorization.

21502114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6560.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 21502114 is about 4637.0372006271. The cubic root of 21502114 is about 278.0740016580.

Adding to 21502114 its reverse (41120512), we get a palindrome (62622626).

The spelling of 21502114 in words is "twenty-one million, five hundred two thousand, one hundred fourteen".