378237361 has 2 divisors, whose sum is σ = 378237362. Its totient is φ = 378237360.

The previous prime is 378237359. The next prime is 378237367. The reversal of 378237361 is 163732873.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 377913600 + 323761 = 19440^2 + 569^2 .

It is a cyclic number.

It is not a de Polignac number, because 378237361 - 2¹ = 378237359 is a prime.

Together with 378237359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (378237367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189118680 + 189118681.

It is an arithmetic number, because the mean of its divisors is an integer number (189118681).

Almost surely, 2^378237361 is an apocalyptic number.

It is an amenable number.

378237361 is a deficient number, since it is larger than the sum of its proper divisors (1).

378237361 is an equidigital number, since it uses as much as digits as its factorization.

378237361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 40.

The square root of 378237361 is about 19448.3254034891. The cubic root of 378237361 is about 723.1939898550.

The spelling of 378237361 in words is "three hundred seventy-eight million, two hundred thirty-seven thousand, three hundred sixty-one".