361864949 has 2 divisors, whose sum is σ = 361864950. Its totient is φ = 361864948.

The previous prime is 361864931. The next prime is 361864963. The reversal of 361864949 is 949468163.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 361684324 + 180625 = 19018^2 + 425^2 .

It is a cyclic number.

It is not a de Polignac number, because 361864949 - 2¹² = 361860853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 361864897 and 361864906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (361860949) 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, 180932474 + 180932475.

It is an arithmetic number, because the mean of its divisors is an integer number (180932475).

Almost surely, 2^361864949 is an apocalyptic number.

It is an amenable number.

361864949 is a deficient number, since it is larger than the sum of its proper divisors (1).

361864949 is an equidigital number, since it uses as much as digits as its factorization.

361864949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 50.

The square root of 361864949 is about 19022.7481978814. The cubic root of 361864949 is about 712.6049577195.

The spelling of 361864949 in words is "three hundred sixty-one million, eight hundred sixty-four thousand, nine hundred forty-nine".