1171298071 has 2 divisors, whose sum is σ = 1171298072. Its totient is φ = 1171298070.

The previous prime is 1171298059. The next prime is 1171298119. The reversal of 1171298071 is 1708921711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1171298071 - 2²¹ = 1169200919 is a prime.

It is a super-2 number, since 2×1171298071² = 2743878342256642082, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1171298071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1171298041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 585649035 + 585649036.

It is an arithmetic number, because the mean of its divisors is an integer number (585649036).

Almost surely, 2^1171298071 is an apocalyptic number.

1171298071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1171298071 is an equidigital number, since it uses as much as digits as its factorization.

1171298071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 37.

The square root of 1171298071 is about 34224.2322192916. The cubic root of 1171298071 is about 1054.1177896221.

The spelling of 1171298071 in words is "one billion, one hundred seventy-one million, two hundred ninety-eight thousand, seventy-one".