378161 has 8 divisors (see below), whose sum is σ = 437760. Its totient is φ = 319968.

The previous prime is 378151. The next prime is 378163. The reversal of 378161 is 161873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 378161 - 2¹⁰ = 377137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 378161.

It is not an unprimeable number, because it can be changed into a prime (378163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320 + ... + 926.

It is an arithmetic number, because the mean of its divisors is an integer number (54720).

2³⁷⁸¹⁶¹ is an apocalyptic number.

It is an amenable number.

378161 is a deficient number, since it is larger than the sum of its proper divisors (59599).

378161 is an equidigital number, since it uses as much as digits as its factorization.

378161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703.

The product of its digits is 1008, while the sum is 26.

The square root of 378161 is about 614.9479652784. The cubic root of 378161 is about 72.3145318889.

The spelling of 378161 in words is "three hundred seventy-eight thousand, one hundred sixty-one".