1445222512 has 20 divisors (see below), whose sum is σ = 2807759776. Its totient is φ = 720639360.

The previous prime is 1445222501. The next prime is 1445222521. The reversal of 1445222512 is 2152225441.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117189 + ... + 128932.

Almost surely, 2^1445222512 is an apocalyptic number.

It is an amenable number.

1445222512 is a deficient number, since it is larger than the sum of its proper divisors (1362537264).

1445222512 is a wasteful number, since it uses less digits than its factorization.

1445222512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246496 (or 246490 counting only the distinct ones).

The product of its digits is 6400, while the sum is 28.

The square root of 1445222512 is about 38016.0822810557. The cubic root of 1445222512 is about 1130.6067464896.

Adding to 1445222512 its reverse (2152225441), we get a palindrome (3597447953).

The spelling of 1445222512 in words is "one billion, four hundred forty-five million, two hundred twenty-two thousand, five hundred twelve".