1288226853 has 24 divisors (see below), whose sum is σ = 1894164480. Its totient is φ = 843449760.

The previous prime is 1288226801. The next prime is 1288226869. The reversal of 1288226853 is 3586228821.

It is not a de Polignac number, because 1288226853 - 2⁹ = 1288226341 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1288226799 and 1288226808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288226873) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 472428 + ... + 475146.

It is an arithmetic number, because the mean of its divisors is an integer number (78923520).

Almost surely, 2^1288226853 is an apocalyptic number.

It is an amenable number.

1288226853 is a deficient number, since it is larger than the sum of its proper divisors (605937627).

1288226853 is a wasteful number, since it uses less digits than its factorization.

1288226853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3649 (or 3646 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 1288226853 is about 35891.8772565604. The cubic root of 1288226853 is about 1088.0882385566.

The spelling of 1288226853 in words is "one billion, two hundred eighty-eight million, two hundred twenty-six thousand, eight hundred fifty-three".