1288495 has 16 divisors (see below), whose sum is σ = 1707552. Its totient is φ = 927360.

The previous prime is 1288487. The next prime is 1288513. The reversal of 1288495 is 5948821.

It is not a de Polignac number, because 1288495 - 2³ = 1288487 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2565 + ... + 3025.

It is an arithmetic number, because the mean of its divisors is an integer number (106722).

2^1288495 is an apocalyptic number.

1288495 is a deficient number, since it is larger than the sum of its proper divisors (419057).

1288495 is a wasteful number, since it uses less digits than its factorization.

1288495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522.

The product of its digits is 23040, while the sum is 37.

The square root of 1288495 is about 1135.1189364996. The cubic root of 1288495 is about 108.8163729234.

The spelling of 1288495 in words is "one million, two hundred eighty-eight thousand, four hundred ninety-five".