216102441 has 4 divisors (see below), whose sum is σ = 288136592. Its totient is φ = 144068292.

The previous prime is 216102433. The next prime is 216102451. The reversal of 216102441 is 144201612.

It is a happy number.

216102441 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 216102441 - 2³ = 216102433 is a prime.

It is a super-3 number, since 3×216102441³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216102421) 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, 36017071 + ... + 36017076.

It is an arithmetic number, because the mean of its divisors is an integer number (72034148).

Almost surely, 2^216102441 is an apocalyptic number.

It is an amenable number.

216102441 is a deficient number, since it is larger than the sum of its proper divisors (72034151).

216102441 is an equidigital number, since it uses as much as digits as its factorization.

216102441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72034150.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 216102441 is about 14700.4231571748. The cubic root of 216102441 is about 600.0948377866.

The spelling of 216102441 in words is "two hundred sixteen million, one hundred two thousand, four hundred forty-one".