378714181 has 2 divisors, whose sum is σ = 378714182. Its totient is φ = 378714180.

The previous prime is 378714163. The next prime is 378714221. The reversal of 378714181 is 181417873.

It is an a-pointer prime, because the next prime (378714221) can be obtained adding 378714181 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 378497025 + 217156 = 19455^2 + 466^2 .

It is a cyclic number.

It is not a de Polignac number, because 378714181 - 2⁷ = 378714053 is a prime.

It is a super-2 number, since 2×378714181² = 286848861781001522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378714101) 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, 189357090 + 189357091.

It is an arithmetic number, because the mean of its divisors is an integer number (189357091).

Almost surely, 2^378714181 is an apocalyptic number.

It is an amenable number.

378714181 is a deficient number, since it is larger than the sum of its proper divisors (1).

378714181 is an equidigital number, since it uses as much as digits as its factorization.

378714181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37632, while the sum is 40.

The square root of 378714181 is about 19460.5801814848. The cubic root of 378714181 is about 723.4977572702.

The spelling of 378714181 in words is "three hundred seventy-eight million, seven hundred fourteen thousand, one hundred eighty-one".