131316446 has 4 divisors (see below), whose sum is σ = 196974672. Its totient is φ = 65658222.

The previous prime is 131316421. The next prime is 131316461. The reversal of 131316446 is 644613131.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 32829110 + ... + 32829113.

It is an arithmetic number, because the mean of its divisors is an integer number (49243668).

Almost surely, 2^131316446 is an apocalyptic number.

131316446 is a deficient number, since it is larger than the sum of its proper divisors (65658226).

131316446 is an equidigital number, since it uses as much as digits as its factorization.

131316446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65658225.

The product of its digits is 5184, while the sum is 29.

The square root of 131316446 is about 11459.3388116418. The cubic root of 131316446 is about 508.2839232694.

Adding to 131316446 its reverse (644613131), we get a palindrome (775929577).

The spelling of 131316446 in words is "one hundred thirty-one million, three hundred sixteen thousand, four hundred forty-six".