275135644 has 48 divisors (see below), whose sum is σ = 578995200. Its totient is φ = 111900096.

The previous prime is 275135639. The next prime is 275135647. The reversal of 275135644 is 446531572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275135647) 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, 45037 + ... + 50779.

It is an arithmetic number, because the mean of its divisors is an integer number (12062400).

Almost surely, 2^275135644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 275135644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289497600).

275135644 is an abundant number, since it is smaller than the sum of its proper divisors (303859556).

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

275135644 is a wasteful number, since it uses less digits than its factorization.

275135644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5842 (or 5840 counting only the distinct ones).

The product of its digits is 100800, while the sum is 37.

The square root of 275135644 is about 16587.2132680568. The cubic root of 275135644 is about 650.4026255034.

The spelling of 275135644 in words is "two hundred seventy-five million, one hundred thirty-five thousand, six hundred forty-four".