1255939 has 2 divisors, whose sum is σ = 1255940. Its totient is φ = 1255938.

The previous prime is 1255931. The next prime is 1255949. The reversal of 1255939 is 9395521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1255939 - 2³ = 1255931 is a prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (1255931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627969 + 627970.

It is an arithmetic number, because the mean of its divisors is an integer number (627970).

2^1255939 is an apocalyptic number.

1255939 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255939 is an equidigital number, since it uses as much as digits as its factorization.

1255939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12150, while the sum is 34.

The square root of 1255939 is about 1120.6868429673. The cubic root of 1255939 is about 107.8920675253.

The spelling of 1255939 in words is "one million, two hundred fifty-five thousand, nine hundred thirty-nine".