1067171257 has 2 divisors, whose sum is σ = 1067171258. Its totient is φ = 1067171256.

The previous prime is 1067171207. The next prime is 1067171267. The reversal of 1067171257 is 7521717601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1066740921 + 430336 = 32661^2 + 656^2 .

It is a cyclic number.

It is not a de Polignac number, because 1067171257 - 2¹⁵ = 1067138489 is a prime.

It is a super-2 number, since 2×1067171257² = 2277708983533920098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1067171207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533585628 + 533585629.

It is an arithmetic number, because the mean of its divisors is an integer number (533585629).

Almost surely, 2^1067171257 is an apocalyptic number.

It is an amenable number.

1067171257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1067171257 is an equidigital number, since it uses as much as digits as its factorization.

1067171257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20580, while the sum is 37.

The square root of 1067171257 is about 32667.5872540352. The cubic root of 1067171257 is about 1021.9069979313.

Adding to 1067171257 its reverse (7521717601), we get a palindrome (8588888858).

The spelling of 1067171257 in words is "one billion, sixty-seven million, one hundred seventy-one thousand, two hundred fifty-seven".