147744197317 has 2 divisors, whose sum is σ = 147744197318. Its totient is φ = 147744197316.

The previous prime is 147744197231. The next prime is 147744197347. The reversal of 147744197317 is 713791447741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84416978116 + 63327219201 = 290546^2 + 251649^2 .

It is a cyclic number.

It is not a de Polignac number, because 147744197317 - 2²³ = 147735808709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147744197347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73872098658 + 73872098659.

It is an arithmetic number, because the mean of its divisors is an integer number (73872098659).

Almost surely, 2^147744197317 is an apocalyptic number.

It is an amenable number.

147744197317 is a deficient number, since it is larger than the sum of its proper divisors (1).

147744197317 is an equidigital number, since it uses as much as digits as its factorization.

147744197317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4148928, while the sum is 55.

The spelling of 147744197317 in words is "one hundred forty-seven billion, seven hundred forty-four million, one hundred ninety-seven thousand, three hundred seventeen".