1122531857 has 2 divisors, whose sum is σ = 1122531858. Its totient is φ = 1122531856.

The previous prime is 1122531847. The next prime is 1122531901. The reversal of 1122531857 is 7581352211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1116161281 + 6370576 = 33409^2 + 2524^2 .

It is an emirp because it is prime and its reverse (7581352211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1122531857 - 2¹⁰ = 1122530833 is a prime.

It is not a weakly prime, because it can be changed into another prime (1122531847) 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, 561265928 + 561265929.

It is an arithmetic number, because the mean of its divisors is an integer number (561265929).

Almost surely, 2^1122531857 is an apocalyptic number.

It is an amenable number.

1122531857 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122531857 is an equidigital number, since it uses as much as digits as its factorization.

1122531857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 35.

The square root of 1122531857 is about 33504.2065567893. The cubic root of 1122531857 is about 1039.2807702857.

The spelling of 1122531857 in words is "one billion, one hundred twenty-two million, five hundred thirty-one thousand, eight hundred fifty-seven".