131558895389 has 2 divisors, whose sum is σ = 131558895390. Its totient is φ = 131558895388.

The previous prime is 131558895371. The next prime is 131558895487. The reversal of 131558895389 is 983598855131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117124795225 + 14434100164 = 342235^2 + 120142^2 .

It is an emirp because it is prime and its reverse (983598855131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131558895389 is a prime.

It is a super-2 number, since 2×131558895389² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131558895289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65779447694 + 65779447695.

It is an arithmetic number, because the mean of its divisors is an integer number (65779447695).

Almost surely, 2^131558895389 is an apocalyptic number.

It is an amenable number.

131558895389 is a deficient number, since it is larger than the sum of its proper divisors (1).

131558895389 is an equidigital number, since it uses as much as digits as its factorization.

131558895389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656000, while the sum is 65.

The spelling of 131558895389 in words is "one hundred thirty-one billion, five hundred fifty-eight million, eight hundred ninety-five thousand, three hundred eighty-nine".