68045177 has 2 divisors, whose sum is σ = 68045178. Its totient is φ = 68045176.

The previous prime is 68045129. The next prime is 68045191. The reversal of 68045177 is 77154086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60668521 + 7376656 = 7789^2 + 2716^2 .

It is a cyclic number.

It is not a de Polignac number, because 68045177 - 2¹⁰ = 68044153 is a prime.

It is a super-2 number, since 2×68045177² = 9260292225922658, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68045177.

It is not a weakly prime, because it can be changed into another prime (68045077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34022588 + 34022589.

It is an arithmetic number, because the mean of its divisors is an integer number (34022589).

Almost surely, 2^68045177 is an apocalyptic number.

It is an amenable number.

68045177 is a deficient number, since it is larger than the sum of its proper divisors (1).

68045177 is an equidigital number, since it uses as much as digits as its factorization.

68045177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 68045177 is about 8248.9500544009. The cubic root of 68045177 is about 408.2558808348.

The spelling of 68045177 in words is "sixty-eight million, forty-five thousand, one hundred seventy-seven".