1173868117 has 4 divisors (see below), whose sum is σ = 1175078016. Its totient is φ = 1172658220.

The previous prime is 1173868093. The next prime is 1173868123. The reversal of 1173868117 is 7118683711.

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 an emirpimes, since its reverse is a distinct semiprime: 7118683711 = 53 ⋅134314787.

It is a cyclic number.

It is not a de Polignac number, because 1173868117 - 2²³ = 1165479509 is a prime.

It is a super-2 number, since 2×1173868117² = 2755932712218251378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1173860117) 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 in 3 ways as a sum of consecutive naturals, for example, 603493 + ... + 605434.

It is an arithmetic number, because the mean of its divisors is an integer number (293769504).

Almost surely, 2^1173868117 is an apocalyptic number.

It is an amenable number.

1173868117 is a deficient number, since it is larger than the sum of its proper divisors (1209899).

1173868117 is an equidigital number, since it uses as much as digits as its factorization.

1173868117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209898.

The product of its digits is 56448, while the sum is 43.

The square root of 1173868117 is about 34261.7588135811. The cubic root of 1173868117 is about 1054.8882033029. Note that the first 3 decimals are identical.

The spelling of 1173868117 in words is "one billion, one hundred seventy-three million, eight hundred sixty-eight thousand, one hundred seventeen".