1117131 has 4 divisors (see below), whose sum is σ = 1489512. Its totient is φ = 744752.

The previous prime is 1117117. The next prime is 1117153. The reversal of 1117131 is 1317111.

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

It is a cyclic number.

It is not a de Polignac number, because 1117131 - 2⁵ = 1117099 is a prime.

It is a super-2 number, since 2×1117131² = 2495963342322, which contains 22 as substring.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 1117131.

It is not an unprimeable number, because it can be changed into a prime (1117111) 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, 186186 + ... + 186191.

It is an arithmetic number, because the mean of its divisors is an integer number (372378).

2^1117131 is an apocalyptic number.

1117131 is a deficient number, since it is larger than the sum of its proper divisors (372381).

1117131 is an equidigital number, since it uses as much as digits as its factorization.

1117131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372380.

The product of its digits is 21, while the sum is 15.

The square root of 1117131 is about 1056.9441801723. The cubic root of 1117131 is about 103.7611320131.

The spelling of 1117131 in words is "one million, one hundred seventeen thousand, one hundred thirty-one".