1288255196 has 24 divisors (see below), whose sum is σ = 2337884640. Its totient is φ = 620626752.

The previous prime is 1288255193. The next prime is 1288255207. The reversal of 1288255196 is 6915528821.

It is a self number, because there is not a number n which added to its sum of digits gives 1288255196.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288255193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27011 + ... + 57498.

It is an arithmetic number, because the mean of its divisors is an integer number (97411860).

Almost surely, 2^1288255196 is an apocalyptic number.

It is an amenable number.

1288255196 is a deficient number, since it is larger than the sum of its proper divisors (1049629444).

1288255196 is a wasteful number, since it uses less digits than its factorization.

1288255196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84653 (or 84651 counting only the distinct ones).

The product of its digits is 345600, while the sum is 47.

The square root of 1288255196 is about 35892.2720930286. The cubic root of 1288255196 is about 1088.0962183775.

The spelling of 1288255196 in words is "one billion, two hundred eighty-eight million, two hundred fifty-five thousand, one hundred ninety-six".