1445126656 has 20 divisors (see below), whose sum is σ = 2887431822. Its totient is φ = 722563072.

The previous prime is 1445126647. The next prime is 1445126693. The reversal of 1445126656 is 6566215441.

It can be written as a sum of positive squares in only one way, i.e., 1336633600 + 108493056 = 36560^2 + 10416^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1410745 + ... + 1411768.

Almost surely, 2^1445126656 is an apocalyptic number.

1445126656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1445126656 is a deficient number, since it is larger than the sum of its proper divisors (1442305166).

1445126656 is an frugal number, since it uses more digits than its factorization.

1445126656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2822531 (or 2822515 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 1445126656 is about 38014.8215305557. The cubic root of 1445126656 is about 1130.5817496845.

The spelling of 1445126656 in words is "one billion, four hundred forty-five million, one hundred twenty-six thousand, six hundred fifty-six".