68437143 has 10 divisors (see below), whose sum is σ = 102233384. Its totient is φ = 45624708.

The previous prime is 68437141. The next prime is 68437157. The reversal of 68437143 is 34173486.

It is not a de Polignac number, because 68437143 - 2¹ = 68437141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68437098 and 68437107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68437141) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 422371 + ... + 422532.

Almost surely, 2^68437143 is an apocalyptic number.

68437143 is a deficient number, since it is larger than the sum of its proper divisors (33796241).

68437143 is an equidigital number, since it uses as much as digits as its factorization.

68437143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844915 (or 844906 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 68437143 is about 8272.6744768545. The cubic root of 68437143 is about 409.0382832911.

The spelling of 68437143 in words is "sixty-eight million, four hundred thirty-seven thousand, one hundred forty-three".