914305221 has 12 divisors (see below), whose sum is σ = 1321171020. Its totient is φ = 609302400.

The previous prime is 914305193. The next prime is 914305229. The reversal of 914305221 is 122503419.

914305221 is a `hidden beast` number, since 9 + 1 + 430 + 5 + 221 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 737122500 + 177182721 = 27150^2 + 13311^2 .

It is a de Polignac number, because none of the positive numbers 2^k-914305221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (914305229) 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 11 ways as a sum of consecutive naturals, for example, 7075 + ... + 43343.

It is an arithmetic number, because the mean of its divisors is an integer number (110097585).

Almost surely, 2^914305221 is an apocalyptic number.

It is an amenable number.

914305221 is a deficient number, since it is larger than the sum of its proper divisors (406865799).

914305221 is a wasteful number, since it uses less digits than its factorization.

914305221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39076 (or 39073 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 914305221 is about 30237.4804009858. The cubic root of 914305221 is about 970.5779037610.

The spelling of 914305221 in words is "nine hundred fourteen million, three hundred five thousand, two hundred twenty-one".