275138 has 8 divisors (see below), whose sum is σ = 421632. Its totient is φ = 134596.

The previous prime is 275131. The next prime is 275147. The reversal of 275138 is 831572.

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 275138.

It is not an unprimeable number, because it can be changed into a prime (275131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1370 + ... + 1557.

It is an arithmetic number, because the mean of its divisors is an integer number (52704).

2²⁷⁵¹³⁸ is an apocalyptic number.

275138 is a deficient number, since it is larger than the sum of its proper divisors (146494).

275138 is a wasteful number, since it uses less digits than its factorization.

275138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2976.

The product of its digits is 1680, while the sum is 26.

The square root of 275138 is about 524.5359854195. The cubic root of 275138 is about 65.0404481975.

It can be divided in two parts, 275 and 138, that multiplied together give a triangular number (37950 = T₂₇₅).

The spelling of 275138 in words is "two hundred seventy-five thousand, one hundred thirty-eight".