147639834987397 has 2 divisors, whose sum is σ = 147639834987398. Its totient is φ = 147639834987396.

The previous prime is 147639834987341. The next prime is 147639834987539. The reversal of 147639834987397 is 793789438936741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80487202189156 + 67152632798241 = 8971466^2 + 8194671^2 .

It is a cyclic number.

It is not a de Polignac number, because 147639834987397 - 2⁷ = 147639834987269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147639834987097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73819917493698 + 73819917493699.

It is an arithmetic number, because the mean of its divisors is an integer number (73819917493699).

Almost surely, 2^{147639834987397} is an apocalyptic number.

It is an amenable number.

147639834987397 is a deficient number, since it is larger than the sum of its proper divisors (1).

147639834987397 is an equidigital number, since it uses as much as digits as its factorization.

147639834987397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41479796736, while the sum is 88.

The spelling of 147639834987397 in words is "one hundred forty-seven trillion, six hundred thirty-nine billion, eight hundred thirty-four million, nine hundred eighty-seven thousand, three hundred ninety-seven".