1255879 has 8 divisors (see below), whose sum is σ = 1291680. Its totient is φ = 1220736.

The previous prime is 1255861. The next prime is 1255907. The reversal of 1255879 is 9785521.

1255879 = T₆₁ + T₆₂ + ... + T₁₉₇.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1255879 - 2⁵ = 1255847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9099 + ... + 9235.

It is an arithmetic number, because the mean of its divisors is an integer number (161460).

2^1255879 is an apocalyptic number.

1255879 is a deficient number, since it is larger than the sum of its proper divisors (35801).

1255879 is a wasteful number, since it uses less digits than its factorization.

1255879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329.

The product of its digits is 25200, while the sum is 37.

The square root of 1255879 is about 1120.6600733496. The cubic root of 1255879 is about 107.8903493880.

The spelling of 1255879 in words is "one million, two hundred fifty-five thousand, eight hundred seventy-nine".