1123613137 has 2 divisors, whose sum is σ = 1123613138. Its totient is φ = 1123613136.

The previous prime is 1123613123. The next prime is 1123613167. The reversal of 1123613137 is 7313163211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 775566801 + 348046336 = 27849^2 + 18656^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123613137 - 2⁷ = 1123613009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123613167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561806568 + 561806569.

It is an arithmetic number, because the mean of its divisors is an integer number (561806569).

Almost surely, 2^1123613137 is an apocalyptic number.

It is an amenable number.

1123613137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123613137 is an equidigital number, since it uses as much as digits as its factorization.

1123613137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 28.

The square root of 1123613137 is about 33520.3391540122. The cubic root of 1123613137 is about 1039.6143592994.

Adding to 1123613137 its reverse (7313163211), we get a palindrome (8436776348).

The spelling of 1123613137 in words is "one billion, one hundred twenty-three million, six hundred thirteen thousand, one hundred thirty-seven".