1181713 has 4 divisors (see below), whose sum is σ = 1272628. Its totient is φ = 1090800.

The previous prime is 1181701. The next prime is 1181723. The reversal of 1181713 is 3171811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 165649 + 1016064 = 407^2 + 1008^2 .

It is a cyclic number.

It is not a de Polignac number, because 1181713 - 2⁵ = 1181681 is a prime.

It is a super-2 number, since 2×1181713² = 2792891228738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1181723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45438 + ... + 45463.

It is an arithmetic number, because the mean of its divisors is an integer number (318157).

2^1181713 is an apocalyptic number.

1181713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1181713 is a deficient number, since it is larger than the sum of its proper divisors (90915).

1181713 is an equidigital number, since it uses as much as digits as its factorization.

1181713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90914.

The product of its digits is 168, while the sum is 22.

The square root of 1181713 is about 1087.0662353325. The cubic root of 1181713 is about 105.7232903909.

The spelling of 1181713 in words is "one million, one hundred eighty-one thousand, seven hundred thirteen".