378155 has 8 divisors (see below), whose sum is σ = 462672. Its totient is φ = 296608.

The previous prime is 378151. The next prime is 378163. The reversal of 378155 is 551873.

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 378155 - 2² = 378151 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 378155.

It is not an unprimeable number, because it can be changed into a prime (378151) 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, 449 + ... + 978.

It is an arithmetic number, because the mean of its divisors is an integer number (57834).

2³⁷⁸¹⁵⁵ is an apocalyptic number.

378155 is a deficient number, since it is larger than the sum of its proper divisors (84517).

378155 is a wasteful number, since it uses less digits than its factorization.

378155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485.

The product of its digits is 4200, while the sum is 29.

The square root of 378155 is about 614.9430867975. The cubic root of 378155 is about 72.3141494332.

It can be divided in two parts, 37 and 8155, that added together give a 13-th power (8192 = 2¹³).

The spelling of 378155 in words is "three hundred seventy-eight thousand, one hundred fifty-five".