1384805953 has 2 divisors, whose sum is σ = 1384805954. Its totient is φ = 1384805952.

The previous prime is 1384805951. The next prime is 1384805959. The reversal of 1384805953 is 3595084831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1380345409 + 4460544 = 37153^2 + 2112^2 .

It is a cyclic number.

It is not a de Polignac number, because 1384805953 - 2¹ = 1384805951 is a prime.

Together with 1384805951, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1384805951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692402976 + 692402977.

It is an arithmetic number, because the mean of its divisors is an integer number (692402977).

Almost surely, 2^1384805953 is an apocalyptic number.

It is an amenable number.

1384805953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1384805953 is an equidigital number, since it uses as much as digits as its factorization.

1384805953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 46.

The square root of 1384805953 is about 37212.9809743858. The cubic root of 1384805953 is about 1114.6272096599.

The spelling of 1384805953 in words is "one billion, three hundred eighty-four million, eight hundred five thousand, nine hundred fifty-three".