378147 has 16 divisors (see below), whose sum is σ = 628992. Its totient is φ = 196320.

The previous prime is 378137. The next prime is 378149. The reversal of 378147 is 741873.

It is a happy number.

It is not a de Polignac number, because 378147 - 2⁶ = 378083 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 378147.

It is not an unprimeable number, because it can be changed into a prime (378149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 588 + ... + 1049.

It is an arithmetic number, because the mean of its divisors is an integer number (39312).

2³⁷⁸¹⁴⁷ is an apocalyptic number.

378147 is a deficient number, since it is larger than the sum of its proper divisors (250845).

378147 is a wasteful number, since it uses less digits than its factorization.

378147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658.

The product of its digits is 4704, while the sum is 30.

The square root of 378147 is about 614.9365820961. The cubic root of 378147 is about 72.3136394860.

It can be divided in two parts, 3781 and 47, that added together give a triangular number (3828 = T₈₇).

The spelling of 378147 in words is "three hundred seventy-eight thousand, one hundred forty-seven".