363543121 has 2 divisors, whose sum is σ = 363543122. Its totient is φ = 363543120.

The previous prime is 363543119. The next prime is 363543149. The reversal of 363543121 is 121345363.

It is an a-pointer prime, because the next prime (363543149) can be obtained adding 363543121 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 231040000 + 132503121 = 15200^2 + 11511^2 .

It is a cyclic number.

It is not a de Polignac number, because 363543121 - 2¹ = 363543119 is a prime.

Together with 363543119, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 363543121.

It is not a weakly prime, because it can be changed into another prime (363543151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181771560 + 181771561.

It is an arithmetic number, because the mean of its divisors is an integer number (181771561).

Almost surely, 2^363543121 is an apocalyptic number.

It is an amenable number.

363543121 is a deficient number, since it is larger than the sum of its proper divisors (1).

363543121 is an equidigital number, since it uses as much as digits as its factorization.

363543121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 28.

The square root of 363543121 is about 19066.8067856157. The cubic root of 363543121 is about 713.7048429958.

Adding to 363543121 its reverse (121345363), we get a palindrome (484888484).

The spelling of 363543121 in words is "three hundred sixty-three million, five hundred forty-three thousand, one hundred twenty-one".