221454141 has 8 divisors (see below), whose sum is σ = 295348224. Its totient is φ = 147598080.

The previous prime is 221454137. The next prime is 221454227. The reversal of 221454141 is 141454122.

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

It is not a de Polignac number, because 221454141 - 2² = 221454137 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221454131) 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, 9540 + ... + 23106.

It is an arithmetic number, because the mean of its divisors is an integer number (36918528).

Almost surely, 2^221454141 is an apocalyptic number.

It is an amenable number.

221454141 is a deficient number, since it is larger than the sum of its proper divisors (73894083).

221454141 is a wasteful number, since it uses less digits than its factorization.

221454141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19011.

The product of its digits is 1280, while the sum is 24.

The square root of 221454141 is about 14881.3353231489. The cubic root of 221454141 is about 605.0082106210.

The spelling of 221454141 in words is "two hundred twenty-one million, four hundred fifty-four thousand, one hundred forty-one".