131312246 has 8 divisors (see below), whose sum is σ = 212119824. Its totient is φ = 60605640.

The previous prime is 131312243. The next prime is 131312257. The reversal of 131312246 is 642213131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131312243) 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, 2525210 + ... + 2525261.

It is an arithmetic number, because the mean of its divisors is an integer number (26514978).

Almost surely, 2^131312246 is an apocalyptic number.

131312246 is a deficient number, since it is larger than the sum of its proper divisors (80807578).

131312246 is a wasteful number, since it uses less digits than its factorization.

131312246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050486.

The product of its digits is 864, while the sum is 23.

The square root of 131312246 is about 11459.1555535301. The cubic root of 131312246 is about 508.2785042598.

Adding to 131312246 its reverse (642213131), we get a palindrome (773525377).

The spelling of 131312246 in words is "one hundred thirty-one million, three hundred twelve thousand, two hundred forty-six".