368787121 has 2 divisors, whose sum is σ = 368787122. Its totient is φ = 368787120.

The previous prime is 368787119. The next prime is 368787143. The reversal of 368787121 is 121787863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 261954225 + 106832896 = 16185^2 + 10336^2 .

It is a cyclic number.

It is not a de Polignac number, because 368787121 - 2¹ = 368787119 is a prime.

Together with 368787119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (368787421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184393560 + 184393561.

It is an arithmetic number, because the mean of its divisors is an integer number (184393561).

Almost surely, 2^368787121 is an apocalyptic number.

It is an amenable number.

368787121 is a deficient number, since it is larger than the sum of its proper divisors (1).

368787121 is an equidigital number, since it uses as much as digits as its factorization.

368787121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 43.

The square root of 368787121 is about 19203.8308938607. The cubic root of 368787121 is about 717.1201328663.

The spelling of 368787121 in words is "three hundred sixty-eight million, seven hundred eighty-seven thousand, one hundred twenty-one".