1671091067 has 2 divisors, whose sum is σ = 1671091068. Its totient is φ = 1671091066.

The previous prime is 1671091001. The next prime is 1671091111. The reversal of 1671091067 is 7601901761.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1671091067 - 2¹² = 1671086971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1671091067.

It is not a weakly prime, because it can be changed into another prime (1671091267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835545533 + 835545534.

It is an arithmetic number, because the mean of its divisors is an integer number (835545534).

Almost surely, 2^1671091067 is an apocalyptic number.

1671091067 is a deficient number, since it is larger than the sum of its proper divisors (1).

1671091067 is an equidigital number, since it uses as much as digits as its factorization.

1671091067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 38.

The square root of 1671091067 is about 40878.9807480568. The cubic root of 1671091067 is about 1186.6793158273.

The spelling of 1671091067 in words is "one billion, six hundred seventy-one million, ninety-one thousand, sixty-seven".