252140185 has 8 divisors (see below), whose sum is σ = 330074496. Its totient is φ = 183374640.

The previous prime is 252140179. The next prime is 252140227. The reversal of 252140185 is 581041252.

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

It is not a de Polignac number, because 252140185 - 2¹¹ = 252138137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2292129 + ... + 2292238.

It is an arithmetic number, because the mean of its divisors is an integer number (41259312).

Almost surely, 2^252140185 is an apocalyptic number.

It is an amenable number.

252140185 is a deficient number, since it is larger than the sum of its proper divisors (77934311).

252140185 is a wasteful number, since it uses less digits than its factorization.

252140185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4584383.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 252140185 is about 15878.9226649669. The cubic root of 252140185 is about 631.7530622432.

The spelling of 252140185 in words is "two hundred fifty-two million, one hundred forty thousand, one hundred eighty-five".