135442055 has 32 divisors (see below), whose sum is σ = 194807808. Its totient is φ = 88387200.

The previous prime is 135442033. The next prime is 135442057. The reversal of 135442055 is 550244531.

It is not a de Polignac number, because 135442055 - 2¹⁶ = 135376519 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 (135442057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250085 + ... + 250625.

It is an arithmetic number, because the mean of its divisors is an integer number (6087744).

Almost surely, 2^135442055 is an apocalyptic number.

135442055 is a deficient number, since it is larger than the sum of its proper divisors (59365753).

135442055 is a wasteful number, since it uses less digits than its factorization.

135442055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 135442055 is about 11637.9575098039. The cubic root of 135442055 is about 513.5521024110.

Adding to 135442055 its reverse (550244531), we get a palindrome (685686586).

The spelling of 135442055 in words is "one hundred thirty-five million, four hundred forty-two thousand, fifty-five".