131345425315135 has 4 divisors (see below), whose sum is σ = 157614510378168. Its totient is φ = 105076340252104.

The previous prime is 131345425315127. The next prime is 131345425315211. The reversal of 131345425315135 is 531513524543131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131345425315135 - 2³ = 131345425315127 is a prime.

It is a super-2 number, since 2×131345425315135² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13134542531509 + ... + 13134542531518.

It is an arithmetic number, because the mean of its divisors is an integer number (39403627594542).

Almost surely, 2^{131345425315135} is an apocalyptic number.

131345425315135 is a deficient number, since it is larger than the sum of its proper divisors (26269085063033).

131345425315135 is an equidigital number, since it uses as much as digits as its factorization.

131345425315135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26269085063032.

The product of its digits is 1620000, while the sum is 46.

Adding to 131345425315135 its reverse (531513524543131), we get a palindrome (662858949858266).

The spelling of 131345425315135 in words is "one hundred thirty-one trillion, three hundred forty-five billion, four hundred twenty-five million, three hundred fifteen thousand, one hundred thirty-five".