131611118 has 8 divisors (see below), whose sum is σ = 197472648. Its totient is φ = 65786904.

The previous prime is 131611111. The next prime is 131611133. The reversal of 131611118 is 811116131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 131611093 and 131611102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131611111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2480 + ... + 16412.

It is an arithmetic number, because the mean of its divisors is an integer number (24684081).

Almost surely, 2^131611118 is an apocalyptic number.

131611118 is a deficient number, since it is larger than the sum of its proper divisors (65861530).

131611118 is a wasteful number, since it uses less digits than its factorization.

131611118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18658.

The product of its digits is 144, while the sum is 23.

The square root of 131611118 is about 11472.1888931450. The cubic root of 131611118 is about 508.6638328995.

Adding to 131611118 its reverse (811116131), we get a palindrome (942727249).

The spelling of 131611118 in words is "one hundred thirty-one million, six hundred eleven thousand, one hundred eighteen".