1289956082 has 16 divisors (see below), whose sum is σ = 1996410240. Its totient is φ = 624794352.

The previous prime is 1289956069. The next prime is 1289956091. The reversal of 1289956082 is 2806599821.

It is a self number, because there is not a number n which added to its sum of digits gives 1289956082.

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, 68648 + ... + 85395.

It is an arithmetic number, because the mean of its divisors is an integer number (124775640).

Almost surely, 2^1289956082 is an apocalyptic number.

1289956082 is a deficient number, since it is larger than the sum of its proper divisors (706454158).

1289956082 is a wasteful number, since it uses less digits than its factorization.

1289956082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154177.

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 1289956082 is about 35915.9585978155. The cubic root of 1289956082 is about 1088.5748796760.

The spelling of 1289956082 in words is "one billion, two hundred eighty-nine million, nine hundred fifty-six thousand, eighty-two".