1331536 has 10 divisors (see below), whose sum is σ = 2579882. Its totient is φ = 665760.

The previous prime is 1331527. The next prime is 1331549. The reversal of 1331536 is 6351331.

It can be written as a sum of positive squares in only one way, i.e., 1123600 + 207936 = 1060^2 + 456^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41595 + ... + 41626.

2^1331536 is an apocalyptic number.

1331536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1331536 is a deficient number, since it is larger than the sum of its proper divisors (1248346).

1331536 is an equidigital number, since it uses as much as digits as its factorization.

1331536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83229 (or 83223 counting only the distinct ones).

The product of its digits is 810, while the sum is 22.

The square root of 1331536 is about 1153.9220077631. The cubic root of 1331536 is about 110.0147638586.

Adding to 1331536 its reverse (6351331), we get a palindrome (7682867).

The spelling of 1331536 in words is "one million, three hundred thirty-one thousand, five hundred thirty-six".