1170013 has 4 divisors (see below), whose sum is σ = 1260028. Its totient is φ = 1080000.

The previous prime is 1170011. The next prime is 1170019. The reversal of 1170013 is 3100711.

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 806404 + 363609 = 898^2 + 603^2 .

It is a cyclic number.

It is not a de Polignac number, because 1170013 - 2¹ = 1170011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 90001 = 1170013 / (1 + 1 + 7 + 0 + 0 + 1 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1169975 and 1170002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1170011) 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, 44988 + ... + 45013.

It is an arithmetic number, because the mean of its divisors is an integer number (315007).

2^1170013 is an apocalyptic number.

1170013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1170013 is a deficient number, since it is larger than the sum of its proper divisors (90015).

1170013 is an equidigital number, since it uses as much as digits as its factorization.

1170013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90014.

The product of its (nonzero) digits is 21, while the sum is 13.

The square root of 1170013 is about 1081.6713918746. The cubic root of 1170013 is about 105.3732145712.

Adding to 1170013 its reverse (3100711), we get a palindrome (4270724).

It can be divided in two parts, 11700 and 13, that multiplied together give a square (152100 = 390²).

The spelling of 1170013 in words is "one million, one hundred seventy thousand, thirteen".