131507703645 has 16 divisors (see below), whose sum is σ = 210450707712. Its totient is φ = 70124648000.

The previous prime is 131507703643. The next prime is 131507703673. The reversal of 131507703645 is 546307705131.

It is not a de Polignac number, because 131507703645 - 2¹ = 131507703643 is a prime.

It is a super-2 number, since 2×131507703645² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131507703597 and 131507703606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131507703643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 714357 + ... + 879386.

It is an arithmetic number, because the mean of its divisors is an integer number (13153169232).

Almost surely, 2^131507703645 is an apocalyptic number.

131507703645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131507703645 is a deficient number, since it is larger than the sum of its proper divisors (78943004067).

131507703645 is a wasteful number, since it uses less digits than its factorization.

131507703645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599252.

The product of its (nonzero) digits is 264600, while the sum is 42.

The spelling of 131507703645 in words is "one hundred thirty-one billion, five hundred seven million, seven hundred three thousand, six hundred forty-five".