131330656 has 12 divisors (see below), whose sum is σ = 258557292. Its totient is φ = 65665312.

The previous prime is 131330629. The next prime is 131330687. The reversal of 131330656 is 656033131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2052010 + ... + 2052073.

It is an arithmetic number, because the mean of its divisors is an integer number (21546441).

Almost surely, 2^131330656 is an apocalyptic number.

131330656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131330656 is a deficient number, since it is larger than the sum of its proper divisors (127226636).

131330656 is an equidigital number, since it uses as much as digits as its factorization.

131330656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4104093 (or 4104085 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 131330656 is about 11459.9588131895. The cubic root of 131330656 is about 508.3022567284.

Adding to 131330656 its reverse (656033131), we get a palindrome (787363787).

The spelling of 131330656 in words is "one hundred thirty-one million, three hundred thirty thousand, six hundred fifty-six".