21341115 has 48 divisors (see below), whose sum is σ = 38918880. Its totient is φ = 10805760.

The previous prime is 21341093. The next prime is 21341141. The reversal of 21341115 is 51114312.

It is not a de Polignac number, because 21341115 - 2⁵ = 21341083 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79201 + ... + 79469.

It is an arithmetic number, because the mean of its divisors is an integer number (810810).

Almost surely, 2^21341115 is an apocalyptic number.

21341115 is a deficient number, since it is larger than the sum of its proper divisors (17577765).

21341115 is a wasteful number, since it uses less digits than its factorization.

21341115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 361 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 21341115 is about 4619.6444668394. The cubic root of 21341115 is about 277.3782275554.

Adding to 21341115 its reverse (51114312), we get a palindrome (72455427).

It can be divided in two parts, 2134 and 1115, that added together give a square (3249 = 57²).

The spelling of 21341115 in words is "twenty-one million, three hundred forty-one thousand, one hundred fifteen".