1181097667 has 2 divisors, whose sum is σ = 1181097668. Its totient is φ = 1181097666.

The previous prime is 1181097653. The next prime is 1181097769. The reversal of 1181097667 is 7667901811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1181097667 - 2⁷ = 1181097539 is a prime.

It is not a weakly prime, because it can be changed into another prime (1181097607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 590548833 + 590548834.

It is an arithmetic number, because the mean of its divisors is an integer number (590548834).

Almost surely, 2^1181097667 is an apocalyptic number.

1181097667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1181097667 is an equidigital number, since it uses as much as digits as its factorization.

1181097667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 46.

The square root of 1181097667 is about 34367.1015216588. The cubic root of 1181097667 is about 1057.0493671723.

The spelling of 1181097667 in words is "one billion, one hundred eighty-one million, ninety-seven thousand, six hundred sixty-seven".