131344351253245 has 32 divisors (see below), whose sum is σ = 173429822678112. Its totient is φ = 94893116178432.

The previous prime is 131344351253243. The next prime is 131344351253257. The reversal of 131344351253245 is 542352153443131.

It can be written as a sum of positive squares in 16 ways, for example, as 26065793288089 + 105278557965156 = 5105467^2 + 10260534^2 .

It is not a de Polignac number, because 131344351253245 - 2¹ = 131344351253243 is a prime.

It is a super-2 number, since 2×131344351253245² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131344351253195 and 131344351253204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131344351253243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52786864 + ... + 55219033.

It is an arithmetic number, because the mean of its divisors is an integer number (5419681958691).

Almost surely, 2^{131344351253245} is an apocalyptic number.

It is an amenable number.

131344351253245 is a deficient number, since it is larger than the sum of its proper divisors (42085471424867).

131344351253245 is a wasteful number, since it uses less digits than its factorization.

131344351253245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108006321.

The product of its digits is 2592000, while the sum is 46.

The spelling of 131344351253245 in words is "one hundred thirty-one trillion, three hundred forty-four billion, three hundred fifty-one million, two hundred fifty-three thousand, two hundred forty-five".