925781281 has 2 divisors, whose sum is σ = 925781282. Its totient is φ = 925781280.

The previous prime is 925781243. The next prime is 925781309. The reversal of 925781281 is 182187529.

It is a happy number.

925781281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 733543056 + 192238225 = 27084^2 + 13865^2 .

It is a cyclic number.

It is not a de Polignac number, because 925781281 - 2¹⁵ = 925748513 is a prime.

It is a super-2 number, since 2×925781281² = 1714141960500001922, which contains 22 as substring.

It is a zygodrome in base 5.

It is not a weakly prime, because it can be changed into another prime (925781881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 462890640 + 462890641.

It is an arithmetic number, because the mean of its divisors is an integer number (462890641).

Almost surely, 2^925781281 is an apocalyptic number.

It is an amenable number.

925781281 is a deficient number, since it is larger than the sum of its proper divisors (1).

925781281 is an equidigital number, since it uses as much as digits as its factorization.

925781281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 43.

The square root of 925781281 is about 30426.6541210170. The cubic root of 925781281 is about 974.6218234417.

The spelling of 925781281 in words is "nine hundred twenty-five million, seven hundred eighty-one thousand, two hundred eighty-one".