131143616 has 14 divisors (see below), whose sum is σ = 260238240. Its totient is φ = 65571776.

The previous prime is 131143613. The next prime is 131143633. The reversal of 131143616 is 616341131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131143613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1024496 + ... + 1024623.

Almost surely, 2^131143616 is an apocalyptic number.

131143616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131143616 is a deficient number, since it is larger than the sum of its proper divisors (129094624).

131143616 is an equidigital number, since it uses as much as digits as its factorization.

131143616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049131 (or 2049121 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

The square root of 131143616 is about 11451.7953177657. The cubic root of 131143616 is about 508.0608355027.

Adding to 131143616 its reverse (616341131), we get a palindrome (747484747).

The spelling of 131143616 in words is "one hundred thirty-one million, one hundred forty-three thousand, six hundred sixteen".