221748053 has 8 divisors (see below), whose sum is σ = 229372416. Its totient is φ = 214153200.

The previous prime is 221748013. The next prime is 221748061. The reversal of 221748053 is 350847122.

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 221748053 - 2⁶ = 221747989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221748013) 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, 8483 + ... + 22703.

It is an arithmetic number, because the mean of its divisors is an integer number (28671552).

Almost surely, 2^221748053 is an apocalyptic number.

It is an amenable number.

221748053 is a deficient number, since it is larger than the sum of its proper divisors (7624363).

221748053 is a wasteful number, since it uses less digits than its factorization.

221748053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14755.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 221748053 is about 14891.2072378300. The cubic root of 221748053 is about 605.2757461683.

The spelling of 221748053 in words is "two hundred twenty-one million, seven hundred forty-eight thousand, fifty-three".