523242281 has 2 divisors, whose sum is σ = 523242282. Its totient is φ = 523242280.

The previous prime is 523242277. The next prime is 523242353. The reversal of 523242281 is 182242325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 504406681 + 18835600 = 22459^2 + 4340^2 .

It is a cyclic number.

It is not a de Polignac number, because 523242281 - 2² = 523242277 is a prime.

It is a super-2 number, since 2×523242281² = 547564969252165922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (523242581) 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 as a sum of consecutive naturals, namely, 261621140 + 261621141.

It is an arithmetic number, because the mean of its divisors is an integer number (261621141).

Almost surely, 2^523242281 is an apocalyptic number.

It is an amenable number.

523242281 is a deficient number, since it is larger than the sum of its proper divisors (1).

523242281 is an equidigital number, since it uses as much as digits as its factorization.

523242281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 29.

The square root of 523242281 is about 22874.4897429429. The cubic root of 523242281 is about 805.8130134740.

The spelling of 523242281 in words is "five hundred twenty-three million, two hundred forty-two thousand, two hundred eighty-one".