1288204525 has 12 divisors (see below), whose sum is σ = 1624449600. Its totient is φ = 1013095280.

The previous prime is 1288204517. The next prime is 1288204549. The reversal of 1288204525 is 5254028821.

It is not a de Polignac number, because 1288204525 - 2³ = 1288204517 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 435205 + ... + 438154.

It is an arithmetic number, because the mean of its divisors is an integer number (135370800).

Almost surely, 2^1288204525 is an apocalyptic number.

It is an amenable number.

1288204525 is a deficient number, since it is larger than the sum of its proper divisors (336245075).

1288204525 is an equidigital number, since it uses as much as digits as its factorization.

1288204525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873428 (or 873423 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 37.

The square root of 1288204525 is about 35891.5662099051. The cubic root of 1288204525 is about 1088.0819521445.

The spelling of 1288204525 in words is "one billion, two hundred eighty-eight million, two hundred four thousand, five hundred twenty-five".