135403538 has 32 divisors (see below), whose sum is σ = 227577600. Its totient is φ = 60044544.

The previous prime is 135403531. The next prime is 135403547. The reversal of 135403538 is 835304531.

135403538 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (135403531) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 153956 + ... + 154832.

It is an arithmetic number, because the mean of its divisors is an integer number (7111800).

Almost surely, 2^135403538 is an apocalyptic number.

135403538 is a deficient number, since it is larger than the sum of its proper divisors (92174062).

135403538 is a wasteful number, since it uses less digits than its factorization.

135403538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 135403538 is about 11636.3025914592. The cubic root of 135403538 is about 513.5034164947.

The spelling of 135403538 in words is "one hundred thirty-five million, four hundred three thousand, five hundred thirty-eight".