1378134 has 40 divisors (see below), whose sum is σ = 3171168. Its totient is φ = 447120.

The previous prime is 1378129. The next prime is 1378141. The reversal of 1378134 is 4318731.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1378098 and 1378107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7524 + ... + 7704.

2^1378134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1378134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1585584).

1378134 is an abundant number, since it is smaller than the sum of its proper divisors (1793034).

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

1378134 is a wasteful number, since it uses less digits than its factorization.

1378134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 233 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 1378134 is about 1173.9395214405. The cubic root of 1378134 is about 111.2834247082.

The spelling of 1378134 in words is "one million, three hundred seventy-eight thousand, one hundred thirty-four".