1288254 has 32 divisors (see below), whose sum is σ = 2851200. Its totient is φ = 384800.

The previous prime is 1288249. The next prime is 1288291. The reversal of 1288254 is 4528821.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8572 + ... + 8720.

It is an arithmetic number, because the mean of its divisors is an integer number (89100).

2^1288254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1288254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1425600).

1288254 is an abundant number, since it is smaller than the sum of its proper divisors (1562946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1288254 is a wasteful number, since it uses less digits than its factorization.

1288254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296.

The product of its digits is 5120, while the sum is 30.

The square root of 1288254 is about 1135.0127752585. The cubic root of 1288254 is about 108.8095881652.

The spelling of 1288254 in words is "one million, two hundred eighty-eight thousand, two hundred fifty-four".