1239255 has 12 divisors (see below), whose sum is σ = 2148120. Its totient is φ = 660912.

The previous prime is 1239247. The next prime is 1239269. The reversal of 1239255 is 5529321.

It is not a de Polignac number, because 1239255 - 2³ = 1239247 is a prime.

It is a d-powerful number, because it can be written as 1 + 2⁷ + 3¹¹ + 9⁶ + 2¹⁹ + 5⁵ + 5⁵ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13725 + ... + 13814.

It is an arithmetic number, because the mean of its divisors is an integer number (179010).

2^1239255 is an apocalyptic number.

1239255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1239255 is a deficient number, since it is larger than the sum of its proper divisors (908865).

1239255 is a wasteful number, since it uses less digits than its factorization.

1239255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27550 (or 27547 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 1239255 is about 1113.2183074312. The cubic root of 1239255 is about 107.4121871671.

The spelling of 1239255 in words is "one million, two hundred thirty-nine thousand, two hundred fifty-five".