1445221214 has 4 divisors (see below), whose sum is σ = 2167831824. Its totient is φ = 722610606.

The previous prime is 1445221207. The next prime is 1445221229. The reversal of 1445221214 is 4121225441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4121225441 = 5413 ⋅761357.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361305302 + ... + 361305305.

It is an arithmetic number, because the mean of its divisors is an integer number (541957956).

Almost surely, 2^1445221214 is an apocalyptic number.

1445221214 is a deficient number, since it is larger than the sum of its proper divisors (722610610).

1445221214 is an equidigital number, since it uses as much as digits as its factorization.

1445221214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722610609.

The product of its digits is 2560, while the sum is 26.

The square root of 1445221214 is about 38016.0652093296. The cubic root of 1445221214 is about 1130.6064080116.

Adding to 1445221214 its reverse (4121225441), we get a palindrome (5566446655).

The spelling of 1445221214 in words is "one billion, four hundred forty-five million, two hundred twenty-one thousand, two hundred fourteen".