131004960545 has 4 divisors (see below), whose sum is σ = 157205952660. Its totient is φ = 104803968432.

The previous prime is 131004960487. The next prime is 131004960551. The reversal of 131004960545 is 545069400131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545069400131 = 59 ⋅9238464409.

It can be written as a sum of positive squares in 2 ways, for example, as 13413577489 + 117591383056 = 115817^2 + 342916^2 .

It is a cyclic number.

It is not a de Polignac number, because 131004960545 - 2¹² = 131004956449 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131004960499 and 131004960508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13100496050 + ... + 13100496059.

It is an arithmetic number, because the mean of its divisors is an integer number (39301488165).

Almost surely, 2^131004960545 is an apocalyptic number.

It is an amenable number.

131004960545 is a deficient number, since it is larger than the sum of its proper divisors (26200992115).

131004960545 is an equidigital number, since it uses as much as digits as its factorization.

131004960545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26200992114.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 131004960545 in words is "one hundred thirty-one billion, four million, nine hundred sixty thousand, five hundred forty-five".