1128422465 has 8 divisors (see below), whose sum is σ = 1356123048. Its totient is φ = 901393920.

The previous prime is 1128422443. The next prime is 1128422489. The reversal of 1128422465 is 5642248211.

It is a Cunningham number, because it is equal to 33592²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 369254656 + 759167809 = 19216^2 + 27553^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1128422465 - 2³⁰ = 54680641 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 164306 + ... + 171035.

It is an arithmetic number, because the mean of its divisors is an integer number (169515381).

Almost surely, 2^1128422465 is an apocalyptic number.

It is an amenable number.

1128422465 is a deficient number, since it is larger than the sum of its proper divisors (227700583).

1128422465 is an equidigital number, since it uses as much as digits as its factorization.

1128422465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336019.

The product of its digits is 30720, while the sum is 35.

The square root of 1128422465 is about 33592.0000148845. Note that the first 4 decimals coincide. The cubic root of 1128422465 is about 1041.0955125814.

The spelling of 1128422465 in words is "one billion, one hundred twenty-eight million, four hundred twenty-two thousand, four hundred sixty-five".