1331135535 has 16 divisors (see below), whose sum is σ = 2241912960. Its totient is φ = 672573600.

The previous prime is 1331135461. The next prime is 1331135539. The reversal of 1331135535 is 5355311331.

It is not a de Polignac number, because 1331135535 - 2¹⁵ = 1331102767 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331135539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2335041 + ... + 2335610.

It is an arithmetic number, because the mean of its divisors is an integer number (140119560).

Almost surely, 2^1331135535 is an apocalyptic number.

1331135535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1331135535 is a deficient number, since it is larger than the sum of its proper divisors (910777425).

1331135535 is a wasteful number, since it uses less digits than its factorization.

1331135535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4670678.

The product of its digits is 10125, while the sum is 30.

The square root of 1331135535 is about 36484.7301620829. The cubic root of 1331135535 is about 1100.0373361983.

Adding to 1331135535 its reverse (5355311331), we get a palindrome (6686446866).

The spelling of 1331135535 in words is "one billion, three hundred thirty-one million, one hundred thirty-five thousand, five hundred thirty-five".