1256041 has 2 divisors, whose sum is σ = 1256042. Its totient is φ = 1256040.

The previous prime is 1256029. The next prime is 1256063. The reversal of 1256041 is 1406521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1010025 + 246016 = 1005^2 + 496^2 .

It is an emirp because it is prime and its reverse (1406521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1256041 - 2⁵ = 1256009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1257041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628020 + 628021.

It is an arithmetic number, because the mean of its divisors is an integer number (628021).

2^1256041 is an apocalyptic number.

It is an amenable number.

1256041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1256041 is an equidigital number, since it uses as much as digits as its factorization.

1256041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1256041 is about 1120.7323498499. The cubic root of 1256041 is about 107.8949882332.

The spelling of 1256041 in words is "one million, two hundred fifty-six thousand, forty-one".