21145114 has 8 divisors (see below), whose sum is σ = 31782240. Its totient is φ = 10551036.

The previous prime is 21145109. The next prime is 21145141. The reversal of 21145114 is 41154112.

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

It is a junction number, because it is equal to n+sod(n) for n = 21145091 and 21145100.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9504 + ... + 11515.

It is an arithmetic number, because the mean of its divisors is an integer number (3972780).

Almost surely, 2^21145114 is an apocalyptic number.

21145114 is a deficient number, since it is larger than the sum of its proper divisors (10637126).

21145114 is a wasteful number, since it uses less digits than its factorization.

21145114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21524.

The product of its digits is 160, while the sum is 19.

The square root of 21145114 is about 4598.3816718493. The cubic root of 21145114 is about 276.5264491658.

Adding to 21145114 its reverse (41154112), we get a palindrome (62299226).

The spelling of 21145114 in words is "twenty-one million, one hundred forty-five thousand, one hundred fourteen".