21094115 has 8 divisors (see below), whose sum is σ = 28929120. Its totient is φ = 14464512.

The previous prime is 21094111. The next prime is 21094133. The reversal of 21094115 is 51149012.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 21094115 - 2² = 21094111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21094111) 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, 301310 + ... + 301379.

It is an arithmetic number, because the mean of its divisors is an integer number (3616140).

Almost surely, 2^21094115 is an apocalyptic number.

21094115 is a deficient number, since it is larger than the sum of its proper divisors (7835005).

21094115 is an equidigital number, since it uses as much as digits as its factorization.

21094115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602701.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 21094115 is about 4592.8330037135. The cubic root of 21094115 is about 276.3039560736.

The spelling of 21094115 in words is "twenty-one million, ninety-four thousand, one hundred fifteen".