1146500221 has 8 divisors (see below), whose sum is σ = 1150819488. Its totient is φ = 1142190000.

The previous prime is 1146500209. The next prime is 1146500273. The reversal of 1146500221 is 1220056411.

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 1146500221 - 2¹⁷ = 1146369149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1146500192 and 1146500201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146530221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342526 + ... + 345856.

It is an arithmetic number, because the mean of its divisors is an integer number (143852436).

Almost surely, 2^1146500221 is an apocalyptic number.

It is an amenable number.

1146500221 is a deficient number, since it is larger than the sum of its proper divisors (4319267).

1146500221 is an equidigital number, since it uses as much as digits as its factorization.

1146500221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4523.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1146500221 is about 33860.0091701110. The cubic root of 1146500221 is about 1046.6256668570.

Adding to 1146500221 its reverse (1220056411), we get a palindrome (2366556632).

The spelling of 1146500221 in words is "one billion, one hundred forty-six million, five hundred thousand, two hundred twenty-one".