1387134 has 48 divisors (see below), whose sum is σ = 3500640. Its totient is φ = 388800.

The previous prime is 1387129. The next prime is 1387147. The reversal of 1387134 is 4317831.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1387098 and 1387107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12672 + ... + 12780.

It is an arithmetic number, because the mean of its divisors is an integer number (72930).

2^1387134 is an apocalyptic number.

1387134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1387134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1750320).

1387134 is an abundant number, since it is smaller than the sum of its proper divisors (2113506).

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

1387134 is a wasteful number, since it uses less digits than its factorization.

1387134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 222 counting only the distinct ones).

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

The square root of 1387134 is about 1177.7665303446. The cubic root of 1387134 is about 111.5251473238.

It can be divided in two parts, 1387 and 134, that added together give a square (1521 = 39²).

The spelling of 1387134 in words is "one million, three hundred eighty-seven thousand, one hundred thirty-four".