1166311453 has 4 divisors (see below), whose sum is σ = 1166732128. Its totient is φ = 1165890780.

The previous prime is 1166311451. The next prime is 1166311457. The reversal of 1166311453 is 3541136611.

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.

It is a cyclic number.

It is not a de Polignac number, because 1166311453 - 2¹ = 1166311451 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 (1166311451) 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, 206151 + ... + 211732.

It is an arithmetic number, because the mean of its divisors is an integer number (291683032).

Almost surely, 2^1166311453 is an apocalyptic number.

It is an amenable number.

1166311453 is a deficient number, since it is larger than the sum of its proper divisors (420675).

1166311453 is an equidigital number, since it uses as much as digits as its factorization.

1166311453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420674.

The product of its digits is 6480, while the sum is 31.

The square root of 1166311453 is about 34151.3023616963. The cubic root of 1166311453 is about 1052.6197479428.

The spelling of 1166311453 in words is "one billion, one hundred sixty-six million, three hundred eleven thousand, four hundred fifty-three".