1044553693 has 2 divisors, whose sum is σ = 1044553694. Its totient is φ = 1044553692.

The previous prime is 1044553673. The next prime is 1044553703. The reversal of 1044553693 is 3963554401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1041804729 + 2748964 = 32277^2 + 1658^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1044553693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1044553663) 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 as a sum of consecutive naturals, namely, 522276846 + 522276847.

It is an arithmetic number, because the mean of its divisors is an integer number (522276847).

Almost surely, 2^1044553693 is an apocalyptic number.

It is an amenable number.

1044553693 is a deficient number, since it is larger than the sum of its proper divisors (1).

1044553693 is an equidigital number, since it uses as much as digits as its factorization.

1044553693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 1044553693 is about 32319.5558911319. Note that the first 3 decimals coincide. The cubic root of 1044553693 is about 1014.6359741936.

The spelling of 1044553693 in words is "one billion, forty-four million, five hundred fifty-three thousand, six hundred ninety-three".