68531443 has 2 divisors, whose sum is σ = 68531444. Its totient is φ = 68531442.

The previous prime is 68531431. The next prime is 68531447. The reversal of 68531443 is 34413586.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68531443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68531399 and 68531408.

It is not a weakly prime, because it can be changed into another prime (68531447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34265721 + 34265722.

It is an arithmetic number, because the mean of its divisors is an integer number (34265722).

Almost surely, 2^68531443 is an apocalyptic number.

68531443 is a deficient number, since it is larger than the sum of its proper divisors (1).

68531443 is an equidigital number, since it uses as much as digits as its factorization.

68531443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 34.

The square root of 68531443 is about 8278.3720017888. The cubic root of 68531443 is about 409.2260692682.

The spelling of 68531443 in words is "sixty-eight million, five hundred thirty-one thousand, four hundred forty-three".