365661349 has 2 divisors, whose sum is σ = 365661350. Its totient is φ = 365661348.

The previous prime is 365661341. The next prime is 365661367. The reversal of 365661349 is 943166563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200024449 + 165636900 = 14143^2 + 12870^2 .

It is an emirp because it is prime and its reverse (943166563) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 365661349 - 2³ = 365661341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (365661341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182830674 + 182830675.

It is an arithmetic number, because the mean of its divisors is an integer number (182830675).

Almost surely, 2^365661349 is an apocalyptic number.

It is an amenable number.

365661349 is a deficient number, since it is larger than the sum of its proper divisors (1).

365661349 is an equidigital number, since it uses as much as digits as its factorization.

365661349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 43.

The square root of 365661349 is about 19122.2736357369. The cubic root of 365661349 is about 715.0883220152.

The spelling of 365661349 in words is "three hundred sixty-five million, six hundred sixty-one thousand, three hundred forty-nine".