1378315 has 8 divisors (see below), whose sum is σ = 1664208. Its totient is φ = 1095840.

The previous prime is 1378301. The next prime is 1378319. The reversal of 1378315 is 5138731.

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

It is not a de Polignac number, because 1378315 - 2⁷ = 1378187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1378319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144 + ... + 1666.

It is an arithmetic number, because the mean of its divisors is an integer number (208026).

2^1378315 is an apocalyptic number.

1378315 is a deficient number, since it is larger than the sum of its proper divisors (285893).

1378315 is a wasteful number, since it uses less digits than its factorization.

1378315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709.

The product of its digits is 2520, while the sum is 28.

The square root of 1378315 is about 1174.0166097633. The cubic root of 1378315 is about 111.2882963723.

The spelling of 1378315 in words is "one million, three hundred seventy-eight thousand, three hundred fifteen".