275548138 has 16 divisors (see below), whose sum is σ = 438181704. Its totient is φ = 129507840.

The previous prime is 275548123. The next prime is 275548187. The reversal of 275548138 is 831845572.

It can be written as a sum of positive squares in 4 ways, for example, as 253860489 + 21687649 = 15933^2 + 4657^2 .

It is a junction number, because it is equal to n+sod(n) for n = 275548094 and 275548103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25198 + ... + 34438.

Almost surely, 2^275548138 is an apocalyptic number.

275548138 is a deficient number, since it is larger than the sum of its proper divisors (162633566).

275548138 is a wasteful number, since it uses less digits than its factorization.

275548138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10137.

The product of its digits is 268800, while the sum is 43.

The square root of 275548138 is about 16599.6427069982. The cubic root of 275548138 is about 650.7274994610.

The spelling of 275548138 in words is "two hundred seventy-five million, five hundred forty-eight thousand, one hundred thirty-eight".