1445456479 has 4 divisors (see below), whose sum is σ = 1447143984. Its totient is φ = 1443768976.

The previous prime is 1445456477. The next prime is 1445456497. The reversal of 1445456479 is 9746545441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1445456479 - 2¹ = 1445456477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445456477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842467 + ... + 844180.

It is an arithmetic number, because the mean of its divisors is an integer number (361785996).

Almost surely, 2^1445456479 is an apocalyptic number.

1445456479 is a deficient number, since it is larger than the sum of its proper divisors (1687505).

1445456479 is an equidigital number, since it uses as much as digits as its factorization.

1445456479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687504.

The product of its digits is 2419200, while the sum is 49.

The square root of 1445456479 is about 38019.1593673506. The cubic root of 1445456479 is about 1130.6677544873.

The spelling of 1445456479 in words is "one billion, four hundred forty-five million, four hundred fifty-six thousand, four hundred seventy-nine".