1123530137 has 2 divisors, whose sum is σ = 1123530138. Its totient is φ = 1123530136.

The previous prime is 1123530131. The next prime is 1123530167. The reversal of 1123530137 is 7310353211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 961248016 + 162282121 = 31004^2 + 12739^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123530137 - 2⁶ = 1123530073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123530131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561765068 + 561765069.

It is an arithmetic number, because the mean of its divisors is an integer number (561765069).

Almost surely, 2^1123530137 is an apocalyptic number.

It is an amenable number.

1123530137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123530137 is an equidigital number, since it uses as much as digits as its factorization.

1123530137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 1123530137 is about 33519.1010768487. The cubic root of 1123530137 is about 1039.5887602999.

Adding to 1123530137 its reverse (7310353211), we get a palindrome (8433883348).

The spelling of 1123530137 in words is "one billion, one hundred twenty-three million, five hundred thirty thousand, one hundred thirty-seven".