219899241 has 9 divisors (see below), whose sum is σ = 317696509. Its totient is φ = 146569836.

The previous prime is 219899227. The next prime is 219899249. The reversal of 219899241 is 142998912.

The square root of 219899241 is 14829.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 219899241 - 2⁵ = 219899209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (219899249) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 42016 + ... + 46958.

Almost surely, 2^219899241 is an apocalyptic number.

219899241 is the 14829-th square number.

219899241 is the 7415-th centered octagonal number.

It is an amenable number.

219899241 is a deficient number, since it is larger than the sum of its proper divisors (97797268).

219899241 is an frugal number, since it uses more digits than its factorization.

219899241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9892 (or 4946 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The cubic root of 219899241 is about 603.5888985438.

The spelling of 219899241 in words is "two hundred nineteen million, eight hundred ninety-nine thousand, two hundred forty-one".