275105140 has 12 divisors (see below), whose sum is σ = 577720836. Its totient is φ = 110042048.

The previous prime is 275105137. The next prime is 275105143. The reversal of 275105140 is 41501572.

It is an interprime number because it is at equal distance from previous prime (275105137) and next prime (275105143).

It can be written as a sum of positive squares in 2 ways, for example, as 83393424 + 191711716 = 9132^2 + 13846^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275105143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6877609 + ... + 6877648.

It is an arithmetic number, because the mean of its divisors is an integer number (48143403).

Almost surely, 2^275105140 is an apocalyptic number.

275105140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275105140 is an abundant number, since it is smaller than the sum of its proper divisors (302615696).

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

275105140 is a wasteful number, since it uses less digits than its factorization.

275105140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13755266 (or 13755264 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 275105140 is about 16586.2937391088. The cubic root of 275105140 is about 650.3785881296.

The spelling of 275105140 in words is "two hundred seventy-five million, one hundred five thousand, one hundred forty".