68147741 has 2 divisors, whose sum is σ = 68147742. Its totient is φ = 68147740.

The previous prime is 68147719. The next prime is 68147753. The reversal of 68147741 is 14774186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64802500 + 3345241 = 8050^2 + 1829^2 .

It is a cyclic number.

It is not a de Polignac number, because 68147741 - 2¹⁰ = 68146717 is a prime.

It is a super-2 number, since 2×68147741² = 9288229206806162, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68147695 and 68147704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68147711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34073870 + 34073871.

It is an arithmetic number, because the mean of its divisors is an integer number (34073871).

Almost surely, 2^68147741 is an apocalyptic number.

It is an amenable number.

68147741 is a deficient number, since it is larger than the sum of its proper divisors (1).

68147741 is an equidigital number, since it uses as much as digits as its factorization.

68147741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 38.

The square root of 68147741 is about 8255.1645047207. The cubic root of 68147741 is about 408.4608982347.

The spelling of 68147741 in words is "sixty-eight million, one hundred forty-seven thousand, seven hundred forty-one".