268257171 has 32 divisors (see below), whose sum is σ = 442398208. Its totient is φ = 140797440.

The previous prime is 268257151. The next prime is 268257173. The reversal of 268257171 is 171752862.

It is a de Polignac number, because none of the positive numbers 2^k-268257171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (268257173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55275 + ... + 59931.

It is an arithmetic number, because the mean of its divisors is an integer number (13824944).

Almost surely, 2^268257171 is an apocalyptic number.

268257171 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

268257171 is a deficient number, since it is larger than the sum of its proper divisors (174141037).

268257171 is a wasteful number, since it uses less digits than its factorization.

268257171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4891.

The product of its digits is 47040, while the sum is 39.

The square root of 268257171 is about 16378.5582698844. The cubic root of 268257171 is about 644.9367331731.

The spelling of 268257171 in words is "two hundred sixty-eight million, two hundred fifty-seven thousand, one hundred seventy-one".