361191133 has 2 divisors, whose sum is σ = 361191134. Its totient is φ = 361191132.

The previous prime is 361191119. The next prime is 361191157. The reversal of 361191133 is 331191163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 347375044 + 13816089 = 18638^2 + 3717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-361191133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (361191113) 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, 180595566 + 180595567.

It is an arithmetic number, because the mean of its divisors is an integer number (180595567).

Almost surely, 2^361191133 is an apocalyptic number.

It is an amenable number.

361191133 is a deficient number, since it is larger than the sum of its proper divisors (1).

361191133 is an equidigital number, since it uses as much as digits as its factorization.

361191133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1458, while the sum is 28.

The square root of 361191133 is about 19005.0291502013. The cubic root of 361191133 is about 712.1623773547.

The spelling of 361191133 in words is "three hundred sixty-one million, one hundred ninety-one thousand, one hundred thirty-three".