1171443493 has 4 divisors (see below), whose sum is σ = 1277938368. Its totient is φ = 1064948620.

The previous prime is 1171443467. The next prime is 1171443509. The reversal of 1171443493 is 3943441711.

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 1171443493 - 2²¹ = 1169346341 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 (1171443193) 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, 53247421 + ... + 53247442.

It is an arithmetic number, because the mean of its divisors is an integer number (319484592).

Almost surely, 2^1171443493 is an apocalyptic number.

It is an amenable number.

1171443493 is a deficient number, since it is larger than the sum of its proper divisors (106494875).

1171443493 is a wasteful number, since it uses less digits than its factorization.

1171443493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106494874.

The product of its digits is 36288, while the sum is 37.

The square root of 1171443493 is about 34226.3567006481. The cubic root of 1171443493 is about 1054.1614123280.

The spelling of 1171443493 in words is "one billion, one hundred seventy-one million, four hundred forty-three thousand, four hundred ninety-three".