1157144171 has 2 divisors, whose sum is σ = 1157144172. Its totient is φ = 1157144170.

The previous prime is 1157144063. The next prime is 1157144207. The reversal of 1157144171 is 1714417511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1157144171 - 2¹⁴ = 1157127787 is a prime.

It is not a weakly prime, because it can be changed into another prime (1157144671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578572085 + 578572086.

It is an arithmetic number, because the mean of its divisors is an integer number (578572086).

Almost surely, 2^1157144171 is an apocalyptic number.

1157144171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157144171 is an equidigital number, since it uses as much as digits as its factorization.

1157144171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3920, while the sum is 32.

The square root of 1157144171 is about 34016.8218827097. The cubic root of 1157144171 is about 1049.8546045087.

The spelling of 1157144171 in words is "one billion, one hundred fifty-seven million, one hundred forty-four thousand, one hundred seventy-one".