147347444514821 has 2 divisors, whose sum is σ = 147347444514822. Its totient is φ = 147347444514820.

The previous prime is 147347444514769. The next prime is 147347444514841. The reversal of 147347444514821 is 128415444743741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138860063532100 + 8487380982721 = 11783890^2 + 2913311^2 .

It is a cyclic number.

It is not a de Polignac number, because 147347444514821 - 2⁶ = 147347444514757 is a prime.

It is a super-2 number, since 2×147347444514821² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147347444514841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73673722257410 + 73673722257411.

It is an arithmetic number, because the mean of its divisors is an integer number (73673722257411).

Almost surely, 2^{147347444514821} is an apocalyptic number.

It is an amenable number.

147347444514821 is a deficient number, since it is larger than the sum of its proper divisors (1).

147347444514821 is an equidigital number, since it uses as much as digits as its factorization.

147347444514821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48168960, while the sum is 59.

The spelling of 147347444514821 in words is "one hundred forty-seven trillion, three hundred forty-seven billion, four hundred forty-four million, five hundred fourteen thousand, eight hundred twenty-one".