131198994526553 has 2 divisors, whose sum is σ = 131198994526554. Its totient is φ = 131198994526552.

The previous prime is 131198994526549. The next prime is 131198994526591. The reversal of 131198994526553 is 355625499891131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131148922408729 + 50072117824 = 11452027^2 + 223768^2 .

It is an emirp because it is prime and its reverse (355625499891131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131198994526553 - 2² = 131198994526549 is a prime.

It is not a weakly prime, because it can be changed into another prime (131198994520553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65599497263276 + 65599497263277.

It is an arithmetic number, because the mean of its divisors is an integer number (65599497263277).

Almost surely, 2^{131198994526553} is an apocalyptic number.

It is an amenable number.

131198994526553 is a deficient number, since it is larger than the sum of its proper divisors (1).

131198994526553 is an equidigital number, since it uses as much as digits as its factorization.

131198994526553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 314928000, while the sum is 71.

The spelling of 131198994526553 in words is "one hundred thirty-one trillion, one hundred ninety-eight billion, nine hundred ninety-four million, five hundred twenty-six thousand, five hundred fifty-three".