1378158 has 8 divisors (see below), whose sum is σ = 2756328. Its totient is φ = 459384.

The previous prime is 1378151. The next prime is 1378163. The reversal of 1378158 is 8518731.

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

1378158 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114841 + ... + 114852.

It is an arithmetic number, because the mean of its divisors is an integer number (344541).

2^1378158 is an apocalyptic number.

1378158 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1378158 is a wasteful number, since it uses less digits than its factorization.

1378158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229698.

The product of its digits is 6720, while the sum is 33.

The square root of 1378158 is about 1173.9497433877. The cubic root of 1378158 is about 111.2840706992.

The spelling of 1378158 in words is "one million, three hundred seventy-eight thousand, one hundred fifty-eight".