1288159670 has 16 divisors (see below), whose sum is σ = 2649928608. Its totient is φ = 441654720.

The previous prime is 1288159667. The next prime is 1288159693. The reversal of 1288159670 is 769518821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9201071 + ... + 9201210.

It is an arithmetic number, because the mean of its divisors is an integer number (165620538).

Almost surely, 2^1288159670 is an apocalyptic number.

1288159670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1288159670 is an abundant number, since it is smaller than the sum of its proper divisors (1361768938).

1288159670 is a wasteful number, since it uses less digits than its factorization.

1288159670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18402295.

The product of its (nonzero) digits is 241920, while the sum is 47.

The square root of 1288159670 is about 35890.9413362202. The cubic root of 1288159670 is about 1088.0693230726.

The spelling of 1288159670 in words is "one billion, two hundred eighty-eight million, one hundred fifty-nine thousand, six hundred seventy".