1123606541 has 2 divisors, whose sum is σ = 1123606542. Its totient is φ = 1123606540.

The previous prime is 1123606507. The next prime is 1123606543. The reversal of 1123606541 is 1456063211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1046781316 + 76825225 = 32354^2 + 8765^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123606541 - 2¹⁴ = 1123590157 is a prime.

Together with 1123606543, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123606543) 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, 561803270 + 561803271.

It is an arithmetic number, because the mean of its divisors is an integer number (561803271).

Almost surely, 2^1123606541 is an apocalyptic number.

It is an amenable number.

1123606541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123606541 is an equidigital number, since it uses as much as digits as its factorization.

1123606541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1123606541 is about 33520.2407658418. The cubic root of 1123606541 is about 1039.6123249962.

Adding to 1123606541 its reverse (1456063211), we get a palindrome (2579669752).

The spelling of 1123606541 in words is "one billion, one hundred twenty-three million, six hundred six thousand, five hundred forty-one".