1445123564 has 24 divisors (see below), whose sum is σ = 2546737200. Its totient is φ = 717496640.

The previous prime is 1445123531. The next prime is 1445123567. The reversal of 1445123564 is 4653215441.

It is not an unprimeable number, because it can be changed into a prime (1445123567) 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, 844742 + ... + 846450.

It is an arithmetic number, because the mean of its divisors is an integer number (106114050).

Almost surely, 2^1445123564 is an apocalyptic number.

It is an amenable number.

1445123564 is a deficient number, since it is larger than the sum of its proper divisors (1101613636).

1445123564 is a wasteful number, since it uses less digits than its factorization.

1445123564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073 (or 3071 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 1445123564 is about 38014.7808621857. The cubic root of 1445123564 is about 1130.5809433512.

The spelling of 1445123564 in words is "one billion, four hundred forty-five million, one hundred twenty-three thousand, five hundred sixty-four".