1671311 has 2 divisors, whose sum is σ = 1671312. Its totient is φ = 1671310.

The previous prime is 1671289. The next prime is 1671337. The reversal of 1671311 is 1131761.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1671311 - 2¹⁰ = 1670287 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1671211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835655 + 835656.

It is an arithmetic number, because the mean of its divisors is an integer number (835656).

2^1671311 is an apocalyptic number.

1671311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1671311 is an equidigital number, since it uses as much as digits as its factorization.

1671311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 126, while the sum is 20.

The square root of 1671311 is about 1292.7919399501. The cubic root of 1671311 is about 118.6731373332.

The spelling of 1671311 in words is "one million, six hundred seventy-one thousand, three hundred eleven".