1445644099 has 2 divisors, whose sum is σ = 1445644100. Its totient is φ = 1445644098.

The previous prime is 1445644097. The next prime is 1445644141. The reversal of 1445644099 is 9904465441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1445644099 - 2¹ = 1445644097 is a prime.

Together with 1445644097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1445644097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722822049 + 722822050.

It is an arithmetic number, because the mean of its divisors is an integer number (722822050).

Almost surely, 2^1445644099 is an apocalyptic number.

1445644099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445644099 is an equidigital number, since it uses as much as digits as its factorization.

1445644099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 1445644099 is about 38021.6267274297. The cubic root of 1445644099 is about 1130.7166725303.

The spelling of 1445644099 in words is "one billion, four hundred forty-five million, six hundred forty-four thousand, ninety-nine".