131135535442 has 12 divisors (see below), whose sum is σ = 208954720890. Its totient is φ = 61710839936.

The previous prime is 131135535431. The next prime is 131135535499. The reversal of 131135535442 is 244535531131.

It can be written as a sum of positive squares in 3 ways, for example, as 108814876641 + 22320658801 = 329871^2 + 149401^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 113438467 + ... + 113439622.

Almost surely, 2^131135535442 is an apocalyptic number.

131135535442 is a deficient number, since it is larger than the sum of its proper divisors (77819185448).

131135535442 is a wasteful number, since it uses less digits than its factorization.

131135535442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226878125 (or 226878108 counting only the distinct ones).

The product of its digits is 108000, while the sum is 37.

The spelling of 131135535442 in words is "one hundred thirty-one billion, one hundred thirty-five million, five hundred thirty-five thousand, four hundred forty-two".