68144177 has 6 divisors (see below), whose sum is σ = 72388758. Its totient is φ = 64135424.

The previous prime is 68144161. The next prime is 68144189. The reversal of 68144177 is 77144186.

It can be written as a sum of positive squares in 3 ways, for example, as 17007376 + 51136801 = 4124^2 + 7151^2 .

It is not a de Polignac number, because 68144177 - 2⁴ = 68144161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68144177.

It is not an unprimeable number, because it can be changed into a prime (68144077) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117608 + ... + 118185.

It is an arithmetic number, because the mean of its divisors is an integer number (12064793).

Almost surely, 2^68144177 is an apocalyptic number.

It is an amenable number.

68144177 is a deficient number, since it is larger than the sum of its proper divisors (4244581).

68144177 is a wasteful number, since it uses less digits than its factorization.

68144177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235827 (or 235810 counting only the distinct ones).

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

The square root of 68144177 is about 8254.9486370298. The cubic root of 68144177 is about 408.4537775290.

Subtracting 68144177 from its reverse (77144186), we obtain a palindrome (9000009).

The spelling of 68144177 in words is "sixty-eight million, one hundred forty-four thousand, one hundred seventy-seven".