1255081 has 2 divisors, whose sum is σ = 1255082. Its totient is φ = 1255080.

The previous prime is 1255069. The next prime is 1255103. The reversal of 1255081 is 1805521.

It is an a-pointer prime, because the next prime (1255103) can be obtained adding 1255081 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 839056 + 416025 = 916^2 + 645^2 .

It is an emirp because it is prime and its reverse (1805521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1255081 - 2⁵ = 1255049 is a prime.

It is a super-3 number, since 3×1255081³ = 5931117392333089323, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (1255021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627540 + 627541.

It is an arithmetic number, because the mean of its divisors is an integer number (627541).

2^1255081 is an apocalyptic number.

It is an amenable number.

1255081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255081 is an equidigital number, since it uses as much as digits as its factorization.

1255081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1255081 is about 1120.3039766063. The cubic root of 1255081 is about 107.8674929554.

The spelling of 1255081 in words is "one million, two hundred fifty-five thousand, eighty-one".