1282555 has 8 divisors (see below), whose sum is σ = 1548000. Its totient is φ = 1020096.

The previous prime is 1282543. The next prime is 1282571. The reversal of 1282555 is 5552821.

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 1282555 - 2⁷ = 1282427 is a prime.

It is an Ulam number.

1282555 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351 + ... + 1639.

It is an arithmetic number, because the mean of its divisors is an integer number (193500).

2^1282555 is an apocalyptic number.

1282555 is a deficient number, since it is larger than the sum of its proper divisors (265445).

1282555 is a wasteful number, since it uses less digits than its factorization.

1282555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493.

The product of its digits is 4000, while the sum is 28.

The square root of 1282555 is about 1132.4994481235. The cubic root of 1282555 is about 108.6488997429.

It can be divided in two parts, 12825 and 55, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 1282555 in words is "one million, two hundred eighty-two thousand, five hundred fifty-five".