1450980221 has 4 divisors (see below), whose sum is σ = 1474766844. Its totient is φ = 1427193600.

The previous prime is 1450980191. The next prime is 1450980227. The reversal of 1450980221 is 1220890541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1220890541 = 13 ⋅93914657.

It can be written as a sum of positive squares in 2 ways, for example, as 754600900 + 696379321 = 27470^2 + 26389^2 .

It is a cyclic number.

It is not a de Polignac number, because 1450980221 - 2²² = 1446785917 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 (1450980227) 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 3 ways as a sum of consecutive naturals, for example, 11893220 + ... + 11893341.

It is an arithmetic number, because the mean of its divisors is an integer number (368691711).

Almost surely, 2^1450980221 is an apocalyptic number.

It is an amenable number.

1450980221 is a deficient number, since it is larger than the sum of its proper divisors (23786623).

1450980221 is an equidigital number, since it uses as much as digits as its factorization.

1450980221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23786622.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 1450980221 is about 38091.7342871127. The cubic root of 1450980221 is about 1132.1061877791.

The spelling of 1450980221 in words is "one billion, four hundred fifty million, nine hundred eighty thousand, two hundred twenty-one".