221041461 has 8 divisors (see below), whose sum is σ = 294854400. Its totient is φ = 147294752.

The previous prime is 221041453. The next prime is 221041481. The reversal of 221041461 is 164140122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221041461 - 2³ = 221041453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221041481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8160 + ... + 22553.

It is an arithmetic number, because the mean of its divisors is an integer number (36856800).

Almost surely, 2^221041461 is an apocalyptic number.

It is an amenable number.

221041461 is a deficient number, since it is larger than the sum of its proper divisors (73812939).

221041461 is a wasteful number, since it uses less digits than its factorization.

221041461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33115.

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

The square root of 221041461 is about 14867.4631662567. The cubic root of 221041461 is about 604.6321658144.

Adding to 221041461 its reverse (164140122), we get a palindrome (385181583).

The spelling of 221041461 in words is "two hundred twenty-one million, forty-one thousand, four hundred sixty-one".