131194842 has 8 divisors (see below), whose sum is σ = 262389696. Its totient is φ = 43731612.

The previous prime is 131194841. The next prime is 131194853. The reversal of 131194842 is 248491131.

It is a happy number.

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

131194842 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (131194841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10932898 + ... + 10932909.

It is an arithmetic number, because the mean of its divisors is an integer number (32798712).

Almost surely, 2^131194842 is an apocalyptic number.

131194842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131194842 is a wasteful number, since it uses less digits than its factorization.

131194842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21865812.

The product of its digits is 6912, while the sum is 33.

The square root of 131194842 is about 11454.0316919415. The cubic root of 131194842 is about 508.1269780957.

The spelling of 131194842 in words is "one hundred thirty-one million, one hundred ninety-four thousand, eight hundred forty-two".