275011243 has 4 divisors (see below), whose sum is σ = 296165968. Its totient is φ = 253856520.

The previous prime is 275011229. The next prime is 275011249. The reversal of 275011243 is 342110572.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275011243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275011249) 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, 10577343 + ... + 10577368.

It is an arithmetic number, because the mean of its divisors is an integer number (74041492).

Almost surely, 2^275011243 is an apocalyptic number.

275011243 is a deficient number, since it is larger than the sum of its proper divisors (21154725).

275011243 is a wasteful number, since it uses less digits than its factorization.

275011243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21154724.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 275011243 is about 16583.4629375170. The cubic root of 275011243 is about 650.3045854562.

The spelling of 275011243 in words is "two hundred seventy-five million, eleven thousand, two hundred forty-three".