131506610633 has 2 divisors, whose sum is σ = 131506610634. Its totient is φ = 131506610632.

The previous prime is 131506610617. The next prime is 131506610657. The reversal of 131506610633 is 336016605131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103325602249 + 28181008384 = 321443^2 + 167872^2 .

It is an emirp because it is prime and its reverse (336016605131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131506610633 - 2⁴ = 131506610617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131506610593 and 131506610602.

It is not a weakly prime, because it can be changed into another prime (131506610033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65753305316 + 65753305317.

It is an arithmetic number, because the mean of its divisors is an integer number (65753305317).

Almost surely, 2^131506610633 is an apocalyptic number.

It is an amenable number.

131506610633 is a deficient number, since it is larger than the sum of its proper divisors (1).

131506610633 is an equidigital number, since it uses as much as digits as its factorization.

131506610633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 35.

The spelling of 131506610633 in words is "one hundred thirty-one billion, five hundred six million, six hundred ten thousand, six hundred thirty-three".