1130644769 has 4 divisors (see below), whose sum is σ = 1132151040. Its totient is φ = 1129138500.

The previous prime is 1130644747. The next prime is 1130644777. The reversal of 1130644769 is 9674460311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9674460311 = 53 ⋅182536987.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1130644769 is a prime.

It is a super-2 number, since 2×1130644769² = 2556715187334126722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1130644469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 752009 + ... + 753510.

It is an arithmetic number, because the mean of its divisors is an integer number (283037760).

Almost surely, 2^1130644769 is an apocalyptic number.

It is an amenable number.

1130644769 is a deficient number, since it is larger than the sum of its proper divisors (1506271).

1130644769 is an equidigital number, since it uses as much as digits as its factorization.

1130644769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506270.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 1130644769 is about 33625.0616207614. The cubic root of 1130644769 is about 1041.7785054732.

The spelling of 1130644769 in words is "one billion, one hundred thirty million, six hundred forty-four thousand, seven hundred sixty-nine".