216259241 has 4 divisors (see below), whose sum is σ = 235919184. Its totient is φ = 196599300.

The previous prime is 216259237. The next prime is 216259247. The reversal of 216259241 is 142952612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 216259241 - 2² = 216259237 is a prime.

It is a super-3 number, since 3×216259241³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216259198 and 216259207.

It is not an unprimeable number, because it can be changed into a prime (216259247) 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, 9829955 + ... + 9829976.

It is an arithmetic number, because the mean of its divisors is an integer number (58979796).

Almost surely, 2^216259241 is an apocalyptic number.

It is an amenable number.

216259241 is a deficient number, since it is larger than the sum of its proper divisors (19659943).

216259241 is a wasteful number, since it uses less digits than its factorization.

216259241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19659942.

The product of its digits is 8640, while the sum is 32.

The square root of 216259241 is about 14705.7553699223. The cubic root of 216259241 is about 600.2399419966.

The spelling of 216259241 in words is "two hundred sixteen million, two hundred fifty-nine thousand, two hundred forty-one".