131230655 has 16 divisors (see below), whose sum is σ = 163425600. Its totient is φ = 101041920.

The previous prime is 131230651. The next prime is 131230699. The reversal of 131230655 is 556032131.

It is not a de Polignac number, because 131230655 - 2² = 131230651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131230651) 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 15 ways as a sum of consecutive naturals, for example, 50795 + ... + 53315.

It is an arithmetic number, because the mean of its divisors is an integer number (10214100).

Almost surely, 2^131230655 is an apocalyptic number.

131230655 is a deficient number, since it is larger than the sum of its proper divisors (32194945).

131230655 is a wasteful number, since it uses less digits than its factorization.

131230655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 131230655 is about 11455.5949212601. The cubic root of 131230655 is about 508.1732093235.

Adding to 131230655 its reverse (556032131), we get a palindrome (687262786).

The spelling of 131230655 in words is "one hundred thirty-one million, two hundred thirty thousand, six hundred fifty-five".