131391829651 has 2 divisors, whose sum is σ = 131391829652. Its totient is φ = 131391829650.

The previous prime is 131391829637. The next prime is 131391829687. The reversal of 131391829651 is 156928193131.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (156928193131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131391829651 - 2⁵ = 131391829619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131391829595 and 131391829604.

It is not a weakly prime, because it can be changed into another prime (131391829631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65695914825 + 65695914826.

It is an arithmetic number, because the mean of its divisors is an integer number (65695914826).

Almost surely, 2^131391829651 is an apocalyptic number.

131391829651 is a deficient number, since it is larger than the sum of its proper divisors (1).

131391829651 is an equidigital number, since it uses as much as digits as its factorization.

131391829651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 49.

The spelling of 131391829651 in words is "one hundred thirty-one billion, three hundred ninety-one million, eight hundred twenty-nine thousand, six hundred fifty-one".