378149 has 2 divisors, whose sum is σ = 378150. Its totient is φ = 378148.

The previous prime is 378137. The next prime is 378151. The reversal of 378149 is 941873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 330625 + 47524 = 575^2 + 218^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378149 is a prime.

Together with 378151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 378149.

It is not a weakly prime, because it can be changed into another prime (378179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189074 + 189075.

It is an arithmetic number, because the mean of its divisors is an integer number (189075).

2³⁷⁸¹⁴⁹ is an apocalyptic number.

It is an amenable number.

378149 is a deficient number, since it is larger than the sum of its proper divisors (1).

378149 is an equidigital number, since it uses as much as digits as its factorization.

378149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 32.

The square root of 378149 is about 614.9382082779. The cubic root of 378149 is about 72.3137669735.

The spelling of 378149 in words is "three hundred seventy-eight thousand, one hundred forty-nine".