361591061197 has 2 divisors, whose sum is σ = 361591061198. Its totient is φ = 361591061196.

The previous prime is 361591061173. The next prime is 361591061213. The reversal of 361591061197 is 791160195163.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 318305842596 + 43285218601 = 564186^2 + 208051^2 .

It is a cyclic number.

It is not a de Polignac number, because 361591061197 - 2¹⁵ = 361591028429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 361591061197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (361591061597) 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, 180795530598 + 180795530599.

It is an arithmetic number, because the mean of its divisors is an integer number (180795530599).

Almost surely, 2^361591061197 is an apocalyptic number.

It is an amenable number.

361591061197 is a deficient number, since it is larger than the sum of its proper divisors (1).

361591061197 is an equidigital number, since it uses as much as digits as its factorization.

361591061197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 306180, while the sum is 49.

The spelling of 361591061197 in words is "three hundred sixty-one billion, five hundred ninety-one million, sixty-one thousand, one hundred ninety-seven".