275131386 has 24 divisors (see below), whose sum is σ = 615348864. Its totient is φ = 88751880.

The previous prime is 275131357. The next prime is 275131387. The reversal of 275131386 is 683131572.

275131386 is a `hidden beast` number, since 2 + 7 + 513 + 138 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 275131386.

It is not an unprimeable number, because it can be changed into a prime (275131387) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 245976 + ... + 247091.

It is an arithmetic number, because the mean of its divisors is an integer number (25639536).

Almost surely, 2^275131386 is an apocalyptic number.

275131386 is an abundant number, since it is smaller than the sum of its proper divisors (340217478).

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

275131386 is a wasteful number, since it uses less digits than its factorization.

275131386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493106 (or 493103 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 275131386 is about 16587.0849156806. The cubic root of 275131386 is about 650.3992702751.

The spelling of 275131386 in words is "two hundred seventy-five million, one hundred thirty-one thousand, three hundred eighty-six".