1383156 has 36 divisors (see below), whose sum is σ = 3628352. Its totient is φ = 460728.

The previous prime is 1383139. The next prime is 1383169. The reversal of 1383156 is 6513831.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 261 + ... + 1683.

2^1383156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1383156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1814176).

1383156 is an abundant number, since it is smaller than the sum of its proper divisors (2245196).

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

1383156 is a wasteful number, since it uses less digits than its factorization.

1383156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442 (or 1428 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1383156 is about 1176.0765281222. The cubic root of 1383156 is about 111.4184352572.

Adding to 1383156 its reverse (6513831), we get a palindrome (7896987).

The spelling of 1383156 in words is "one million, three hundred eighty-three thousand, one hundred fifty-six".