1166312453 has 4 divisors (see below), whose sum is σ = 1167247500. Its totient is φ = 1165377408.

The previous prime is 1166312447. The next prime is 1166312467. The reversal of 1166312453 is 3542136611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3542136611 = 13 ⋅272472047.

It can be written as a sum of positive squares in 2 ways, for example, as 662444644 + 503867809 = 25738^2 + 22447^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166312453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166314453) 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, 465650 + ... + 468147.

It is an arithmetic number, because the mean of its divisors is an integer number (291811875).

Almost surely, 2^1166312453 is an apocalyptic number.

It is an amenable number.

1166312453 is a deficient number, since it is larger than the sum of its proper divisors (935047).

1166312453 is an equidigital number, since it uses as much as digits as its factorization.

1166312453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935046.

The product of its digits is 12960, while the sum is 32.

The square root of 1166312453 is about 34151.3170024232. The cubic root of 1166312453 is about 1052.6200487828.

The spelling of 1166312453 in words is "one billion, one hundred sixty-six million, three hundred twelve thousand, four hundred fifty-three".