131440165547 has 2 divisors, whose sum is σ = 131440165548. Its totient is φ = 131440165546.

The previous prime is 131440165523. The next prime is 131440165553. The reversal of 131440165547 is 745561044131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131440165547 is a prime.

It is not a weakly prime, because it can be changed into another prime (131440165847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65720082773 + 65720082774.

It is an arithmetic number, because the mean of its divisors is an integer number (65720082774).

Almost surely, 2^131440165547 is an apocalyptic number.

131440165547 is a deficient number, since it is larger than the sum of its proper divisors (1).

131440165547 is an equidigital number, since it uses as much as digits as its factorization.

131440165547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 131440165547 in words is "one hundred thirty-one billion, four hundred forty million, one hundred sixty-five thousand, five hundred forty-seven".