1012685289 has 16 divisors (see below), whose sum is σ = 1683425280. Its totient is φ = 526070160.

The previous prime is 1012685221. The next prime is 1012685293. The reversal of 1012685289 is 9825862101.

It is a happy number.

It is not a de Polignac number, because 1012685289 - 2¹⁶ = 1012619753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1012685289.

It is not an unprimeable number, because it can be changed into a prime (1012685209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2191729 + ... + 2192190.

It is an arithmetic number, because the mean of its divisors is an integer number (105214080).

Almost surely, 2^1012685289 is an apocalyptic number.

It is an amenable number.

1012685289 is a deficient number, since it is larger than the sum of its proper divisors (670739991).

1012685289 is a wasteful number, since it uses less digits than its factorization.

1012685289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4383940.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 1012685289 is about 31822.7165559447. The cubic root of 1012685289 is about 1004.2106749979.

The spelling of 1012685289 in words is "one billion, twelve million, six hundred eighty-five thousand, two hundred eighty-nine".