252840141 has 12 divisors (see below), whose sum is σ = 365488032. Its totient is φ = 168433416.

The previous prime is 252840139. The next prime is 252840149. The reversal of 252840141 is 141048252.

252840141 is a `hidden beast` number, since 252 + 8 + 401 + 4 + 1 = 666.

It is not a de Polignac number, because 252840141 - 2¹ = 252840139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252840149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3000 + ... + 22686.

It is an arithmetic number, because the mean of its divisors is an integer number (30457336).

Almost surely, 2^252840141 is an apocalyptic number.

It is an amenable number.

252840141 is a deficient number, since it is larger than the sum of its proper divisors (112647891).

252840141 is a wasteful number, since it uses less digits than its factorization.

252840141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21120 (or 21117 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 252840141 is about 15900.9478019394. The cubic root of 252840141 is about 632.3371166861.

Adding to 252840141 its reverse (141048252), we get a palindrome (393888393).

The spelling of 252840141 in words is "two hundred fifty-two million, eight hundred forty thousand, one hundred forty-one".