1671113291 has 2 divisors, whose sum is σ = 1671113292. Its totient is φ = 1671113290.

The previous prime is 1671113237. The next prime is 1671113293. The reversal of 1671113291 is 1923111761.

It is a strong prime.

It is an emirp because it is prime and its reverse (1923111761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1671113291 - 2¹⁴ = 1671096907 is a prime.

It is a Sophie Germain prime.

Together with 1671113293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1671113293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835556645 + 835556646.

It is an arithmetic number, because the mean of its divisors is an integer number (835556646).

Almost surely, 2^1671113291 is an apocalyptic number.

1671113291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1671113291 is an equidigital number, since it uses as much as digits as its factorization.

1671113291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 32.

The square root of 1671113291 is about 40879.2525738913. The cubic root of 1671113291 is about 1186.6845763912.

The spelling of 1671113291 in words is "one billion, six hundred seventy-one million, one hundred thirteen thousand, two hundred ninety-one".