21025114 has 16 divisors (see below), whose sum is σ = 34970976. Its totient is φ = 9399600.

The previous prime is 21025097. The next prime is 21025117. The reversal of 21025114 is 41152012.

It is not an unprimeable number, because it can be changed into a prime (21025117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6492 + ... + 9175.

It is an arithmetic number, because the mean of its divisors is an integer number (2185686).

Almost surely, 2^21025114 is an apocalyptic number.

21025114 is a deficient number, since it is larger than the sum of its proper divisors (13945862).

21025114 is a wasteful number, since it uses less digits than its factorization.

21025114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15741.

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

The square root of 21025114 is about 4585.3150382498. The cubic root of 21025114 is about 276.0023541772.

Adding to 21025114 its reverse (41152012), we get a palindrome (62177126).

The spelling of 21025114 in words is "twenty-one million, twenty-five thousand, one hundred fourteen".