252109273 has 4 divisors (see below), whose sum is σ = 271502308. Its totient is φ = 232716240.

The previous prime is 252109243. The next prime is 252109343. The reversal of 252109273 is 372901252.

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

It can be written as a sum of positive squares in 2 ways, for example, as 152967424 + 99141849 = 12368^2 + 9957^2 .

It is a cyclic number.

It is not a de Polignac number, because 252109273 - 2⁵ = 252109241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252109243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9696498 + ... + 9696523.

It is an arithmetic number, because the mean of its divisors is an integer number (67875577).

Almost surely, 2^252109273 is an apocalyptic number.

It is an amenable number.

252109273 is a deficient number, since it is larger than the sum of its proper divisors (19393035).

252109273 is a wasteful number, since it uses less digits than its factorization.

252109273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19393034.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 252109273 is about 15877.9492693484. The cubic root of 252109273 is about 631.7272438692.

The spelling of 252109273 in words is "two hundred fifty-two million, one hundred nine thousand, two hundred seventy-three".