1331136 has 42 divisors (see below), whose sum is σ = 3817112. Its totient is φ = 443520.

The previous prime is 1331123. The next prime is 1331153. The reversal of 1331136 is 6311331.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 580 + ... + 1731.

2^1331136 is an apocalyptic number.

1331136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1331136 is an abundant number, since it is smaller than the sum of its proper divisors (2485976).

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

1331136 is a wasteful number, since it uses less digits than its factorization.

1331136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329 (or 2316 counting only the distinct ones).

The product of its digits is 162, while the sum is 18.

The square root of 1331136 is about 1153.7486728053. The cubic root of 1331136 is about 110.0037464289.

Adding to 1331136 its reverse (6311331), we get a palindrome (7642467).

The spelling of 1331136 in words is "one million, three hundred thirty-one thousand, one hundred thirty-six".