65147131523 has 2 divisors, whose sum is σ = 65147131524. Its totient is φ = 65147131522.

The previous prime is 65147131499. The next prime is 65147131529. The reversal of 65147131523 is 32513174156.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65147131523 - 2⁸ = 65147131267 is a prime.

It is not a weakly prime, because it can be changed into another prime (65147131529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32573565761 + 32573565762.

It is an arithmetic number, because the mean of its divisors is an integer number (32573565762).

Almost surely, 2^65147131523 is an apocalyptic number.

65147131523 is a deficient number, since it is larger than the sum of its proper divisors (1).

65147131523 is an equidigital number, since it uses as much as digits as its factorization.

65147131523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 38.

The spelling of 65147131523 in words is "sixty-five billion, one hundred forty-seven million, one hundred thirty-one thousand, five hundred twenty-three".