252246281 has 8 divisors (see below), whose sum is σ = 288537024. Its totient is φ = 216019440.

The previous prime is 252246277. The next prime is 252246307. The reversal of 252246281 is 182642252.

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

It is not a de Polignac number, because 252246281 - 2² = 252246277 is a prime.

It is a super-2 number, since 2×252246281² = 127256372556661922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252246581) 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, 7190 + ... + 23583.

It is an arithmetic number, because the mean of its divisors is an integer number (36067128).

Almost surely, 2^252246281 is an apocalyptic number.

It is an amenable number.

252246281 is a deficient number, since it is larger than the sum of its proper divisors (36290743).

252246281 is a wasteful number, since it uses less digits than its factorization.

252246281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31951.

The product of its digits is 15360, while the sum is 32.

The square root of 252246281 is about 15882.2630944082. The cubic root of 252246281 is about 631.8416598804.

The spelling of 252246281 in words is "two hundred fifty-two million, two hundred forty-six thousand, two hundred eighty-one".