1128467831 has 2 divisors, whose sum is σ = 1128467832. Its totient is φ = 1128467830.

The previous prime is 1128467827. The next prime is 1128467839. The reversal of 1128467831 is 1387648211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1128467831 - 2² = 1128467827 is a prime.

It is a super-2 number, since 2×1128467831² = 2546879291203689122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1128467839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564233915 + 564233916.

It is an arithmetic number, because the mean of its divisors is an integer number (564233916).

Almost surely, 2^1128467831 is an apocalyptic number.

1128467831 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128467831 is an equidigital number, since it uses as much as digits as its factorization.

1128467831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 41.

The square root of 1128467831 is about 33592.6752581571. The cubic root of 1128467831 is about 1041.1094641251.

The spelling of 1128467831 in words is "one billion, one hundred twenty-eight million, four hundred sixty-seven thousand, eight hundred thirty-one".