275544138 has 32 divisors (see below), whose sum is σ = 580867200. Its totient is φ = 87004736.

The previous prime is 275544103. The next prime is 275544197. The reversal of 275544138 is 831445572.

It is a junction number, because it is equal to n+sod(n) for n = 275544096 and 275544105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5718 + ... + 24161.

It is an arithmetic number, because the mean of its divisors is an integer number (18152100).

Almost surely, 2^275544138 is an apocalyptic number.

275544138 is an abundant number, since it is smaller than the sum of its proper divisors (305323062).

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

275544138 is a wasteful number, since it uses less digits than its factorization.

275544138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29966.

The product of its digits is 134400, while the sum is 39.

The square root of 275544138 is about 16599.5222220400. The cubic root of 275544138 is about 650.7243506795.

The spelling of 275544138 in words is "two hundred seventy-five million, five hundred forty-four thousand, one hundred thirty-eight".