4146509221 has 16 divisors (see below), whose sum is σ = 4352360320. Its totient is φ = 3946864320.

The previous prime is 4146509179. The next prime is 4146509231. The reversal of 4146509221 is 1229056414.

It is a cyclic number.

It is not a de Polignac number, because 4146509221 - 2⁷ = 4146509093 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 (4146509231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278656 + ... + 293158.

It is an arithmetic number, because the mean of its divisors is an integer number (272022520).

Almost surely, 2^4146509221 is an apocalyptic number.

It is an amenable number.

4146509221 is a deficient number, since it is larger than the sum of its proper divisors (205851099).

4146509221 is a wasteful number, since it uses less digits than its factorization.

4146509221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14716.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 4146509221 is about 64393.3942341914. The cubic root of 4146509221 is about 1606.5498718829.

The spelling of 4146509221 in words is "four billion, one hundred forty-six million, five hundred nine thousand, two hundred twenty-one".