68545523 has 2 divisors, whose sum is σ = 68545524. Its totient is φ = 68545522.

The previous prime is 68545511. The next prime is 68545567. The reversal of 68545523 is 32554586.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68545523 - 2¹⁸ = 68283379 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (68545823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34272761 + 34272762.

It is an arithmetic number, because the mean of its divisors is an integer number (34272762).

Almost surely, 2^68545523 is an apocalyptic number.

68545523 is a deficient number, since it is larger than the sum of its proper divisors (1).

68545523 is an equidigital number, since it uses as much as digits as its factorization.

68545523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144000, while the sum is 38.

The square root of 68545523 is about 8279.2223668651. Note that the first 3 decimals coincide. The cubic root of 68545523 is about 409.2540929425.

The spelling of 68545523 in words is "sixty-eight million, five hundred forty-five thousand, five hundred twenty-three".