131512340533 has 6 divisors (see below), whose sum is σ = 152983743126. Its totient is φ = 112724863272.

The previous prime is 131512340473. The next prime is 131512340537. The reversal of 131512340533 is 335043215131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 116925015249 + 14587325284 = 341943^2 + 120778^2 .

It is not a de Polignac number, because 131512340533 - 2¹⁷ = 131512209461 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131512340495 and 131512340504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131512340537) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1341962610 + ... + 1341962707.

It is an arithmetic number, because the mean of its divisors is an integer number (25497290521).

Almost surely, 2^131512340533 is an apocalyptic number.

It is an amenable number.

131512340533 is a deficient number, since it is larger than the sum of its proper divisors (21471402593).

131512340533 is an equidigital number, since it uses as much as digits as its factorization.

131512340533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2683925331 (or 2683925324 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 131512340533 its reverse (335043215131), we get a palindrome (466555555664).

The spelling of 131512340533 in words is "one hundred thirty-one billion, five hundred twelve million, three hundred forty thousand, five hundred thirty-three".