1025281 has 2 divisors, whose sum is σ = 1025282. Its totient is φ = 1025280.

The previous prime is 1025279. The next prime is 1025303. The reversal of 1025281 is 1825201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1000000 + 25281 = 1000^2 + 159^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025281 - 2¹ = 1025279 is a prime.

It is a super-3 number, since 3×1025281³ = 3233329634106789123, which contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 1025279, it forms a pair of twin primes.

It is equal to p₈₀₃₆₂ and since 1025281 and 80362 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1025231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512640 + 512641.

It is an arithmetic number, because the mean of its divisors is an integer number (512641).

2^1025281 is an apocalyptic number.

It is an amenable number.

1025281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025281 is an equidigital number, since it uses as much as digits as its factorization.

1025281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1025281 is about 1012.5616030642. The cubic root of 1025281 is about 100.8356966563.

The spelling of 1025281 in words is "one million, twenty-five thousand, two hundred eighty-one".