1069445749 has 2 divisors, whose sum is σ = 1069445750. Its totient is φ = 1069445748.

The previous prime is 1069445737. The next prime is 1069445777. The reversal of 1069445749 is 9475449601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 952956900 + 116488849 = 30870^2 + 10793^2 .

It is an emirp because it is prime and its reverse (9475449601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1069445749 - 2²⁵ = 1035891317 is a prime.

It is a super-2 number, since 2×1069445749² = 2287428420108342002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1069445149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534722874 + 534722875.

It is an arithmetic number, because the mean of its divisors is an integer number (534722875).

Almost surely, 2^1069445749 is an apocalyptic number.

It is an amenable number.

1069445749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1069445749 is an equidigital number, since it uses as much as digits as its factorization.

1069445749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 1069445749 is about 32702.3813964671. The cubic root of 1069445749 is about 1022.6324890941.

The spelling of 1069445749 in words is "one billion, sixty-nine million, four hundred forty-five thousand, seven hundred forty-nine".