68541133 has 2 divisors, whose sum is σ = 68541134. Its totient is φ = 68541132.

The previous prime is 68541119. The next prime is 68541139. The reversal of 68541133 is 33114586.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61261929 + 7279204 = 7827^2 + 2698^2 .

It is a cyclic number.

It is not a de Polignac number, because 68541133 - 2⁵ = 68541101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68541095 and 68541104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68541139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34270566 + 34270567.

It is an arithmetic number, because the mean of its divisors is an integer number (34270567).

Almost surely, 2^68541133 is an apocalyptic number.

It is an amenable number.

68541133 is a deficient number, since it is larger than the sum of its proper divisors (1).

68541133 is an equidigital number, since it uses as much as digits as its factorization.

68541133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 31.

The square root of 68541133 is about 8278.9572411023. The cubic root of 68541133 is about 409.2453558592.

The spelling of 68541133 in words is "sixty-eight million, five hundred forty-one thousand, one hundred thirty-three".