378162247 has 2 divisors, whose sum is σ = 378162248. Its totient is φ = 378162246.

The previous prime is 378162227. The next prime is 378162269. The reversal of 378162247 is 742261873.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378162247 - 2¹⁹ = 377637959 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378162217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189081123 + 189081124.

It is an arithmetic number, because the mean of its divisors is an integer number (189081124).

Almost surely, 2^378162247 is an apocalyptic number.

378162247 is a deficient number, since it is larger than the sum of its proper divisors (1).

378162247 is an equidigital number, since it uses as much as digits as its factorization.

378162247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 40.

The square root of 378162247 is about 19446.3941901834. The cubic root of 378162247 is about 723.1461137545.

The spelling of 378162247 in words is "three hundred seventy-eight million, one hundred sixty-two thousand, two hundred forty-seven".