135442511 has 8 divisors (see below), whose sum is σ = 138184704. Its totient is φ = 132723640.

The previous prime is 135442477. The next prime is 135442513. The reversal of 135442511 is 115244531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135442511 - 2¹⁰ = 135441487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135442513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6146 + ... + 17568.

It is an arithmetic number, because the mean of its divisors is an integer number (17273088).

Almost surely, 2^135442511 is an apocalyptic number.

135442511 is a deficient number, since it is larger than the sum of its proper divisors (2742193).

135442511 is a wasteful number, since it uses less digits than its factorization.

135442511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11661.

The product of its digits is 2400, while the sum is 26.

The square root of 135442511 is about 11637.9771008539. The cubic root of 135442511 is about 513.5526787448.

The spelling of 135442511 in words is "one hundred thirty-five million, four hundred forty-two thousand, five hundred eleven".