1128507469 has 4 divisors (see below), whose sum is σ = 1134812160. Its totient is φ = 1122202780.

The previous prime is 1128507467. The next prime is 1128507487. The reversal of 1128507469 is 9647058211.

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.

It is a cyclic number.

It is not a de Polignac number, because 1128507469 - 2¹ = 1128507467 is a prime.

It is a super-2 number, since 2×1128507469² = 2547058215177571922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128507461) 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 in 3 ways as a sum of consecutive naturals, for example, 3152077 + ... + 3152434.

It is an arithmetic number, because the mean of its divisors is an integer number (283703040).

Almost surely, 2^1128507469 is an apocalyptic number.

It is an amenable number.

1128507469 is a deficient number, since it is larger than the sum of its proper divisors (6304691).

1128507469 is an equidigital number, since it uses as much as digits as its factorization.

1128507469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6304690.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 1128507469 is about 33593.2652327814. The cubic root of 1128507469 is about 1041.1216538135.

The spelling of 1128507469 in words is "one billion, one hundred twenty-eight million, five hundred seven thousand, four hundred sixty-nine".