1191713 has 4 divisors (see below), whose sum is σ = 1196208. Its totient is φ = 1187220.

The previous prime is 1191703. The next prime is 1191719. The reversal of 1191713 is 3171911.

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: 3171911 = 17 ⋅186583.

It is a cyclic number.

It is not a de Polignac number, because 1191713 - 2⁸ = 1191457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1191719) 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, 1823 + ... + 2388.

It is an arithmetic number, because the mean of its divisors is an integer number (299052).

2^1191713 is an apocalyptic number.

It is an amenable number.

1191713 is a deficient number, since it is larger than the sum of its proper divisors (4495).

1191713 is an equidigital number, since it uses as much as digits as its factorization.

1191713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4494.

The product of its digits is 189, while the sum is 23.

The square root of 1191713 is about 1091.6560813736. The cubic root of 1191713 is about 106.0206735517.

The spelling of 1191713 in words is "one million, one hundred ninety-one thousand, seven hundred thirteen".