361774729 has 2 divisors, whose sum is σ = 361774730. Its totient is φ = 361774728.

The previous prime is 361774727. The next prime is 361774747. The reversal of 361774729 is 927477163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 344176704 + 17598025 = 18552^2 + 4195^2 .

It is a cyclic number.

It is not a de Polignac number, because 361774729 - 2¹ = 361774727 is a prime.

Together with 361774727, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (361774723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180887364 + 180887365.

It is an arithmetic number, because the mean of its divisors is an integer number (180887365).

Almost surely, 2^361774729 is an apocalyptic number.

It is an amenable number.

361774729 is a deficient number, since it is larger than the sum of its proper divisors (1).

361774729 is an equidigital number, since it uses as much as digits as its factorization.

361774729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 444528, while the sum is 46.

The square root of 361774729 is about 19020.3766787096. The cubic root of 361774729 is about 712.5457306854.

The spelling of 361774729 in words is "three hundred sixty-one million, seven hundred seventy-four thousand, seven hundred twenty-nine".