361622197 has 2 divisors, whose sum is σ = 361622198. Its totient is φ = 361622196.

The previous prime is 361622171. The next prime is 361622207. The reversal of 361622197 is 791226163.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 352913796 + 8708401 = 18786^2 + 2951^2 .

It is a cyclic number.

It is not a de Polignac number, because 361622197 - 2¹⁹ = 361097909 is a prime.

It is a super-2 number, since 2×361622197² = 261541226726213618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (361622167) 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, 180811098 + 180811099.

It is an arithmetic number, because the mean of its divisors is an integer number (180811099).

Almost surely, 2^361622197 is an apocalyptic number.

It is an amenable number.

361622197 is a deficient number, since it is larger than the sum of its proper divisors (1).

361622197 is an equidigital number, since it uses as much as digits as its factorization.

361622197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 37.

The square root of 361622197 is about 19016.3665562063. The cubic root of 361622197 is about 712.4455750774.

The spelling of 361622197 in words is "three hundred sixty-one million, six hundred twenty-two thousand, one hundred ninety-seven".