221494483 has 8 divisors (see below), whose sum is σ = 256604768. Its totient is φ = 187251264.

The previous prime is 221494453. The next prime is 221494499. The reversal of 221494483 is 384494122.

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 221494483 - 2⁵ = 221494451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221494453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216216 + ... + 217237.

It is an arithmetic number, because the mean of its divisors is an integer number (32075596).

Almost surely, 2^221494483 is an apocalyptic number.

221494483 is a deficient number, since it is larger than the sum of its proper divisors (35110285).

221494483 is an equidigital number, since it uses as much as digits as its factorization.

221494483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433533.

The product of its digits is 55296, while the sum is 37.

The square root of 221494483 is about 14882.6907177432. The cubic root of 221494483 is about 605.0449462316.

The spelling of 221494483 in words is "two hundred twenty-one million, four hundred ninety-four thousand, four hundred eighty-three".