1445634647 has 2 divisors, whose sum is σ = 1445634648. Its totient is φ = 1445634646.

The previous prime is 1445634637. The next prime is 1445634719. The reversal of 1445634647 is 7464365441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1445634647 - 2¹⁴ = 1445618263 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1445634598 and 1445634607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445634637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722817323 + 722817324.

It is an arithmetic number, because the mean of its divisors is an integer number (722817324).

Almost surely, 2^1445634647 is an apocalyptic number.

1445634647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445634647 is an equidigital number, since it uses as much as digits as its factorization.

1445634647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 44.

The square root of 1445634647 is about 38021.5024295464. The cubic root of 1445634647 is about 1130.7142082176.

The spelling of 1445634647 in words is "one billion, four hundred forty-five million, six hundred thirty-four thousand, six hundred forty-seven".