131212255 has 8 divisors (see below), whose sum is σ = 159224400. Its totient is φ = 103790016.

The previous prime is 131212253. The next prime is 131212261. The reversal of 131212255 is 552212131.

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

It is a cyclic number.

It is not a de Polignac number, because 131212255 - 2¹ = 131212253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131212253) 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 7 ways as a sum of consecutive naturals, for example, 146985 + ... + 147874.

It is an arithmetic number, because the mean of its divisors is an integer number (19903050).

Almost surely, 2^131212255 is an apocalyptic number.

131212255 is a deficient number, since it is larger than the sum of its proper divisors (28012145).

131212255 is an equidigital number, since it uses as much as digits as its factorization.

131212255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294953.

The product of its digits is 600, while the sum is 22.

The square root of 131212255 is about 11454.7917920842. The cubic root of 131212255 is about 508.1494576980.

Adding to 131212255 its reverse (552212131), we get a palindrome (683424386).

It can be divided in two parts, 13121 and 2255, that added together give a square (15376 = 124²).

The spelling of 131212255 in words is "one hundred thirty-one million, two hundred twelve thousand, two hundred fifty-five".