131656311194 has 8 divisors (see below), whose sum is σ = 199296251220. Its totient is φ = 65224227456.

The previous prime is 131656311191. The next prime is 131656311221. The reversal of 131656311194 is 491113656131.

It can be written as a sum of positive squares in 2 ways, for example, as 115902798025 + 15753513169 = 340445^2 + 125513^2 .

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

It is a super-3 number, since 3×131656311194³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (131656311191) 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, 301963799 + ... + 301964234.

Almost surely, 2^131656311194 is an apocalyptic number.

131656311194 is a deficient number, since it is larger than the sum of its proper divisors (67639940026).

131656311194 is a wasteful number, since it uses less digits than its factorization.

131656311194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603928144.

The product of its digits is 58320, while the sum is 41.

The spelling of 131656311194 in words is "one hundred thirty-one billion, six hundred fifty-six million, three hundred eleven thousand, one hundred ninety-four".