215363941 has 4 divisors (see below), whose sum is σ = 231930412. Its totient is φ = 198797472.

The previous prime is 215363923. The next prime is 215363957. The reversal of 215363941 is 149363512.

215363941 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 125664100 + 89699841 = 11210^2 + 9471^2 .

It is a cyclic number.

It is not a de Polignac number, because 215363941 - 2¹¹ = 215361893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 215363897 and 215363906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215363921) 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, 8283216 + ... + 8283241.

It is an arithmetic number, because the mean of its divisors is an integer number (57982603).

Almost surely, 2^215363941 is an apocalyptic number.

It is an amenable number.

215363941 is a deficient number, since it is larger than the sum of its proper divisors (16566471).

215363941 is a wasteful number, since it uses less digits than its factorization.

215363941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16566470.

The product of its digits is 19440, while the sum is 34.

The square root of 215363941 is about 14675.2833362767. The cubic root of 215363941 is about 599.4104774431.

The spelling of 215363941 in words is "two hundred fifteen million, three hundred sixty-three thousand, nine hundred forty-one".