135100044 has 18 divisors (see below), whose sum is σ = 341502980. Its totient is φ = 45033336.

The previous prime is 135100001. The next prime is 135100079. The reversal of 135100044 is 440001531.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1876354 + ... + 1876425.

Almost surely, 2^135100044 is an apocalyptic number.

It is an amenable number.

135100044 is an abundant number, since it is smaller than the sum of its proper divisors (206402936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135100044 is a wasteful number, since it uses less digits than its factorization.

135100044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3752789 (or 3752784 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 135100044 is about 11623.2544495937. The cubic root of 135100044 is about 513.1194733306.

Adding to 135100044 its reverse (440001531), we get a palindrome (575101575).

The spelling of 135100044 in words is "one hundred thirty-five million, one hundred thousand, forty-four".