221457041 has 8 divisors (see below), whose sum is σ = 248861760. Its totient is φ = 195533712.

The previous prime is 221457017. The next prime is 221457083. The reversal of 221457041 is 140754122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221457041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221457041.

It is not an unprimeable number, because it can be changed into a prime (221457241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370031 + ... + 370628.

It is an arithmetic number, because the mean of its divisors is an integer number (31107720).

Almost surely, 2^221457041 is an apocalyptic number.

It is an amenable number.

221457041 is a deficient number, since it is larger than the sum of its proper divisors (27404719).

221457041 is a wasteful number, since it uses less digits than its factorization.

221457041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740695.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 221457041 is about 14881.4327603225. The cubic root of 221457041 is about 605.0108515231.

The spelling of 221457041 in words is "two hundred twenty-one million, four hundred fifty-seven thousand, forty-one".