131506382545 has 16 divisors (see below), whose sum is σ = 170164874880. Its totient is φ = 97237065600.

The previous prime is 131506382519. The next prime is 131506382569. The reversal of 131506382545 is 545283605131.

It is a de Polignac number, because none of the positive numbers 2^k-131506382545 is a prime.

It is an unprimeable number.

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, 16877541 + ... + 16885330.

It is an arithmetic number, because the mean of its divisors is an integer number (10635304680).

Almost surely, 2^131506382545 is an apocalyptic number.

It is an amenable number.

131506382545 is a deficient number, since it is larger than the sum of its proper divisors (38658492335).

131506382545 is a wasteful number, since it uses less digits than its factorization.

131506382545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33762936.

The product of its (nonzero) digits is 432000, while the sum is 43.

Adding to 131506382545 its reverse (545283605131), we get a palindrome (676789987676).

The spelling of 131506382545 in words is "one hundred thirty-one billion, five hundred six million, three hundred eighty-two thousand, five hundred forty-five".