275238135 has 16 divisors (see below), whose sum is σ = 489312480. Its totient is φ = 146793600.

The previous prime is 275238121. The next prime is 275238137. The reversal of 275238135 is 531832572.

It is a happy number.

275238135 is a `hidden beast` number, since 27 + 523 + 81 + 35 = 666.

It is not a de Polignac number, because 275238135 - 2⁶ = 275238071 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 275238135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275238137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1019266 + ... + 1019535.

It is an arithmetic number, because the mean of its divisors is an integer number (30582030).

Almost surely, 2^275238135 is an apocalyptic number.

275238135 is a deficient number, since it is larger than the sum of its proper divisors (214074345).

275238135 is a wasteful number, since it uses less digits than its factorization.

275238135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038815 (or 2038809 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 275238135 is about 16590.3024384729. The cubic root of 275238135 is about 650.4833761457.

The spelling of 275238135 in words is "two hundred seventy-five million, two hundred thirty-eight thousand, one hundred thirty-five".