1447480645 has 16 divisors (see below), whose sum is σ = 1876518000. Its totient is φ = 1065521664.

The previous prime is 1447480637. The next prime is 1447480669. The reversal of 1447480645 is 5460847441.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 793041921 + 654438724 = 28161^2 + 25582^2 .

It is a cyclic number.

It is not a de Polignac number, because 1447480645 - 2³ = 1447480637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14520 + ... + 55729.

It is an arithmetic number, because the mean of its divisors is an integer number (117282375).

Almost surely, 2^1447480645 is an apocalyptic number.

It is an amenable number.

1447480645 is a deficient number, since it is larger than the sum of its proper divisors (429037355).

1447480645 is a wasteful number, since it uses less digits than its factorization.

1447480645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70584.

The product of its (nonzero) digits is 430080, while the sum is 43.

The square root of 1447480645 is about 38045.7703956695. The cubic root of 1447480645 is about 1131.1952906603.

The spelling of 1447480645 in words is "one billion, four hundred forty-seven million, four hundred eighty thousand, six hundred forty-five".