252840271 has 8 divisors (see below), whose sum is σ = 254051280. Its totient is φ = 251633088.

The previous prime is 252840257. The next prime is 252840281. The reversal of 252840271 is 172048252.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252840271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252840281) 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 7 ways as a sum of consecutive naturals, for example, 333625 + ... + 334381.

It is an arithmetic number, because the mean of its divisors is an integer number (31756410).

Almost surely, 2^252840271 is an apocalyptic number.

252840271 is a deficient number, since it is larger than the sum of its proper divisors (1211009).

252840271 is an equidigital number, since it uses as much as digits as its factorization.

252840271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 252840271 is about 15900.9518897455. The cubic root of 252840271 is about 632.3372250600.

The spelling of 252840271 in words is "two hundred fifty-two million, eight hundred forty thousand, two hundred seventy-one".