1288071 has 12 divisors (see below), whose sum is σ = 1873872. Its totient is φ = 852576.

The previous prime is 1288061. The next prime is 1288099. The reversal of 1288071 is 1708821.

It is not a de Polignac number, because 1288071 - 2¹⁰ = 1287047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1075 + ... + 1931.

It is an arithmetic number, because the mean of its divisors is an integer number (156156).

2^1288071 is an apocalyptic number.

1288071 is a deficient number, since it is larger than the sum of its proper divisors (585801).

1288071 is a wasteful number, since it uses less digits than its factorization.

1288071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030 (or 1027 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 1288071 is about 1134.9321565627. The cubic root of 1288071 is about 108.8044356882.

The spelling of 1288071 in words is "one million, two hundred eighty-eight thousand, seventy-one".