1288871164 has 24 divisors (see below), whose sum is σ = 2637692288. Its totient is φ = 539526960.

The previous prime is 1288871149. The next prime is 1288871173. The reversal of 1288871164 is 4611788821.

It is a super-2 number, since 2×1288871164² = 3322377754781429792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 534042 + ... + 536449.

Almost surely, 2^1288871164 is an apocalyptic number.

1288871164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1288871164 is an abundant number, since it is smaller than the sum of its proper divisors (1348821124).

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

1288871164 is a wasteful number, since it uses less digits than its factorization.

1288871164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070545 (or 1070543 counting only the distinct ones).

The product of its digits is 172032, while the sum is 46.

The square root of 1288871164 is about 35900.8518561886. The cubic root of 1288871164 is about 1088.2696119877.

The spelling of 1288871164 in words is "one billion, two hundred eighty-eight million, eight hundred seventy-one thousand, one hundred sixty-four".