1445521612 has 6 divisors (see below), whose sum is σ = 2529662828. Its totient is φ = 722760804.

The previous prime is 1445521601. The next prime is 1445521621. The reversal of 1445521612 is 2161255441.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180690198 + ... + 180690205.

Almost surely, 2^1445521612 is an apocalyptic number.

It is an amenable number.

1445521612 is a deficient number, since it is larger than the sum of its proper divisors (1084141216).

1445521612 is a wasteful number, since it uses less digits than its factorization.

1445521612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361380407 (or 361380405 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The square root of 1445521612 is about 38020.0159389761. The cubic root of 1445521612 is about 1130.6847370525.

The spelling of 1445521612 in words is "one billion, four hundred forty-five million, five hundred twenty-one thousand, six hundred twelve".