1255361 has 2 divisors, whose sum is σ = 1255362. Its totient is φ = 1255360.

The previous prime is 1255357. The next prime is 1255367. The reversal of 1255361 is 1635521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1254400 + 961 = 1120^2 + 31^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255361 - 2² = 1255357 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1255367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627680 + 627681.

It is an arithmetic number, because the mean of its divisors is an integer number (627681).

2^1255361 is an apocalyptic number.

It is an amenable number.

1255361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255361 is an equidigital number, since it uses as much as digits as its factorization.

1255361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 900, while the sum is 23.

The square root of 1255361 is about 1120.4289357206. The cubic root of 1255361 is about 107.8755138593.

The spelling of 1255361 in words is "one million, two hundred fifty-five thousand, three hundred sixty-one".