378545 has 4 divisors (see below), whose sum is σ = 454260. Its totient is φ = 302832.

The previous prime is 378533. The next prime is 378551. The reversal of 378545 is 545873.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 237169 + 141376 = 487^2 + 376^2 .

It is a cyclic number.

It is not a de Polignac number, because 378545 - 2⁸ = 378289 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 378545.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37850 + ... + 37859.

It is an arithmetic number, because the mean of its divisors is an integer number (113565).

2³⁷⁸⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

378545 is a deficient number, since it is larger than the sum of its proper divisors (75715).

378545 is an equidigital number, since it uses as much as digits as its factorization.

378545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75714.

The product of its digits is 16800, while the sum is 32.

The square root of 378545 is about 615.2601075968. The cubic root of 378545 is about 72.3390006437.

The spelling of 378545 in words is "three hundred seventy-eight thousand, five hundred forty-five".