131545306345 has 8 divisors (see below), whose sum is σ = 158913793800. Its totient is φ = 104529960960.

The previous prime is 131545306309. The next prime is 131545306397. The reversal of 131545306345 is 543603545131.

It can be written as a sum of positive squares in 4 ways, for example, as 865948329 + 130679358016 = 29427^2 + 361496^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131545306345 - 2²³ = 131536917737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131545306298 and 131545306307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88284696 + ... + 88286185.

It is an arithmetic number, because the mean of its divisors is an integer number (19864224225).

Almost surely, 2^131545306345 is an apocalyptic number.

It is an amenable number.

131545306345 is a deficient number, since it is larger than the sum of its proper divisors (27368487455).

131545306345 is a wasteful number, since it uses less digits than its factorization.

131545306345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176571035.

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 131545306345 in words is "one hundred thirty-one billion, five hundred forty-five million, three hundred six thousand, three hundred forty-five".