1157171 has 2 divisors, whose sum is σ = 1157172. Its totient is φ = 1157170.

The previous prime is 1157159. The next prime is 1157179. The reversal of 1157171 is 1717511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1157171 - 2¹⁴ = 1140787 is a prime.

It is not a weakly prime, because it can be changed into another prime (1157179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578585 + 578586.

It is an arithmetic number, because the mean of its divisors is an integer number (578586).

2^1157171 is an apocalyptic number.

1157171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157171 is an equidigital number, since it uses as much as digits as its factorization.

1157171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 245, while the sum is 23.

The square root of 1157171 is about 1075.7188294345. The cubic root of 1157171 is about 104.9862718258.

It can be divided in two parts, 11 and 57171, that multiplied together give a triangular number (628881 = T₁₁₂₁).

The spelling of 1157171 in words is "one million, one hundred fifty-seven thousand, one hundred seventy-one".