68437133 has 2 divisors, whose sum is σ = 68437134. Its totient is φ = 68437132.

The previous prime is 68437091. The next prime is 68437141. The reversal of 68437133 is 33173486.

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., 55383364 + 13053769 = 7442^2 + 3613^2 .

It is a cyclic number.

It is not a de Polignac number, because 68437133 - 2¹² = 68433037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68437093 and 68437102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68437163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34218566 + 34218567.

It is an arithmetic number, because the mean of its divisors is an integer number (34218567).

Almost surely, 2^68437133 is an apocalyptic number.

It is an amenable number.

68437133 is a deficient number, since it is larger than the sum of its proper divisors (1).

68437133 is an equidigital number, since it uses as much as digits as its factorization.

68437133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 35.

The square root of 68437133 is about 8272.6738724550. The cubic root of 68437133 is about 409.0382633682.

The spelling of 68437133 in words is "sixty-eight million, four hundred thirty-seven thousand, one hundred thirty-three".