920281 has 2 divisors, whose sum is σ = 920282. Its totient is φ = 920280.

The previous prime is 920279. The next prime is 920291. The reversal of 920281 is 182029.

920281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 839056 + 81225 = 916^2 + 285^2 .

It is an emirp because it is prime and its reverse (182029) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 920281 - 2¹ = 920279 is a prime.

It is a super-2 number, since 2×920281² = 1693834237922, which contains 22 as substring.

Together with 920279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (920201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460140 + 460141.

It is an arithmetic number, because the mean of its divisors is an integer number (460141).

2⁹²⁰²⁸¹ is an apocalyptic number.

It is an amenable number.

920281 is a deficient number, since it is larger than the sum of its proper divisors (1).

920281 is an equidigital number, since it uses as much as digits as its factorization.

920281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 920281 is about 959.3127748550. The cubic root of 920281 is about 97.2687836958.

It can be divided in two parts, 92028 and 1, that added together give a palindrome (92029).

The spelling of 920281 in words is "nine hundred twenty thousand, two hundred eighty-one".