135031533 has 16 divisors (see below), whose sum is σ = 221590656. Its totient is φ = 71225280.

The previous prime is 135031529. The next prime is 135031553. The reversal of 135031533 is 335130531.

It is not a de Polignac number, because 135031533 - 2² = 135031529 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135031553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247038 + ... + 247583.

It is an arithmetic number, because the mean of its divisors is an integer number (13849416).

Almost surely, 2^135031533 is an apocalyptic number.

135031533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

135031533 is a deficient number, since it is larger than the sum of its proper divisors (86559123).

135031533 is a wasteful number, since it uses less digits than its factorization.

135031533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494644.

The product of its (nonzero) digits is 2025, while the sum is 24.

The square root of 135031533 is about 11620.3069236574. The cubic root of 135031533 is about 513.0327221318.

The spelling of 135031533 in words is "one hundred thirty-five million, thirty-one thousand, five hundred thirty-three".