1171286801 has 4 divisors (see below), whose sum is σ = 1171388400. Its totient is φ = 1171185204.

The previous prime is 1171286783. The next prime is 1171286819. The reversal of 1171286801 is 1086821711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1086821711 = 101 ⋅10760611.

It is an interprime number because it is at equal distance from previous prime (1171286783) and next prime (1171286819).

It is a cyclic number.

It is not a de Polignac number, because 1171286801 - 2¹⁴ = 1171270417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1171286881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30911 + ... + 57428.

It is an arithmetic number, because the mean of its divisors is an integer number (292847100).

Almost surely, 2^1171286801 is an apocalyptic number.

It is an amenable number.

1171286801 is a deficient number, since it is larger than the sum of its proper divisors (101599).

1171286801 is an equidigital number, since it uses as much as digits as its factorization.

1171286801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101598.

The product of its (nonzero) digits is 5376, while the sum is 35.

The square root of 1171286801 is about 34224.0675694751. The cubic root of 1171286801 is about 1054.1144087732.

The spelling of 1171286801 in words is "one billion, one hundred seventy-one million, two hundred eighty-six thousand, eight hundred one".