5665123 has 2 divisors, whose sum is σ = 5665124. Its totient is φ = 5665122.

The previous prime is 5665109. The next prime is 5665151. The reversal of 5665123 is 3215665.

It is an a-pointer prime, because the next prime (5665151) can be obtained adding 5665123 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5665123 - 2⁹ = 5664611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5665091 and 5665100.

It is not a weakly prime, because it can be changed into another prime (5665183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2832561 + 2832562.

It is an arithmetic number, because the mean of its divisors is an integer number (2832562).

Almost surely, 2^5665123 is an apocalyptic number.

5665123 is a deficient number, since it is larger than the sum of its proper divisors (1).

5665123 is an equidigital number, since it uses as much as digits as its factorization.

5665123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 28.

The square root of 5665123 is about 2380.1518859098. The cubic root of 5665123 is about 178.2665178020.

The spelling of 5665123 in words is "five million, six hundred sixty-five thousand, one hundred twenty-three".