1166452873 has 4 divisors (see below), whose sum is σ = 1193579728. Its totient is φ = 1139326020.

The previous prime is 1166452849. The next prime is 1166452897. The reversal of 1166452873 is 3782546611.

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: 3782546611 = 73 ⋅51815707.

It is an interprime number because it is at equal distance from previous prime (1166452849) and next prime (1166452897).

It is a cyclic number.

It is not a de Polignac number, because 1166452873 - 2¹⁷ = 1166321801 is a prime.

It is a super-2 number, since 2×1166452873² = 2721224609859908258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 27126811 = 1166452873 / (1 + 1 + 6 + 6 + 4 + 5 + 2 + 8 + 7 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166452813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13563363 + ... + 13563448.

It is an arithmetic number, because the mean of its divisors is an integer number (298394932).

Almost surely, 2^1166452873 is an apocalyptic number.

It is an amenable number.

1166452873 is a deficient number, since it is larger than the sum of its proper divisors (27126855).

1166452873 is an equidigital number, since it uses as much as digits as its factorization.

1166452873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27126854.

The product of its digits is 241920, while the sum is 43.

The square root of 1166452873 is about 34153.3727909851. The cubic root of 1166452873 is about 1052.6622910297.

The spelling of 1166452873 in words is "one billion, one hundred sixty-six million, four hundred fifty-two thousand, eight hundred seventy-three".