1167513857 has 2 divisors, whose sum is σ = 1167513858. Its totient is φ = 1167513856.

The previous prime is 1167513821. The next prime is 1167513859. The reversal of 1167513857 is 7583157611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1090056256 + 77457601 = 33016^2 + 8801^2 .

It is a cyclic number.

It is not a de Polignac number, because 1167513857 - 2²⁰ = 1166465281 is a prime.

Together with 1167513859, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1167513859) 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 as a sum of consecutive naturals, namely, 583756928 + 583756929.

It is an arithmetic number, because the mean of its divisors is an integer number (583756929).

Almost surely, 2^1167513857 is an apocalyptic number.

It is an amenable number.

1167513857 is a deficient number, since it is larger than the sum of its proper divisors (1).

1167513857 is an equidigital number, since it uses as much as digits as its factorization.

1167513857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 176400, while the sum is 44.

The square root of 1167513857 is about 34168.9018992417. The cubic root of 1167513857 is about 1052.9813550401.

The spelling of 1167513857 in words is "one billion, one hundred sixty-seven million, five hundred thirteen thousand, eight hundred fifty-seven".