1128124671 has 4 divisors (see below), whose sum is σ = 1504166232. Its totient is φ = 752083112.

The previous prime is 1128124649. The next prime is 1128124763. The reversal of 1128124671 is 1764218211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1128124671 - 2²⁷ = 993906943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128124271) 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 in 3 ways as a sum of consecutive naturals, for example, 188020776 + ... + 188020781.

It is an arithmetic number, because the mean of its divisors is an integer number (376041558).

Almost surely, 2^1128124671 is an apocalyptic number.

1128124671 is a deficient number, since it is larger than the sum of its proper divisors (376041561).

1128124671 is an equidigital number, since it uses as much as digits as its factorization.

1128124671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376041560.

The product of its digits is 5376, while the sum is 33.

The square root of 1128124671 is about 33587.5672087158. The cubic root of 1128124671 is about 1041.0039218035.

The spelling of 1128124671 in words is "one billion, one hundred twenty-eight million, one hundred twenty-four thousand, six hundred seventy-one".