1031989106 has 16 divisors (see below), whose sum is σ = 1600572960. Its totient is φ = 498700320.

The previous prime is 1031989081. The next prime is 1031989109. The reversal of 1031989106 is 6019891301.

It is a self number, because there is not a number n which added to its sum of digits gives 1031989106.

It is not an unprimeable number, because it can be changed into a prime (1031989109) 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 7 ways as a sum of consecutive naturals, for example, 50036 + ... + 67583.

It is an arithmetic number, because the mean of its divisors is an integer number (100035810).

Almost surely, 2^1031989106 is an apocalyptic number.

1031989106 is a deficient number, since it is larger than the sum of its proper divisors (568583854).

1031989106 is a wasteful number, since it uses less digits than its factorization.

1031989106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117769.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 1031989106 is about 32124.5872502667. The cubic root of 1031989106 is about 1010.5513135556.

The spelling of 1031989106 in words is "one billion, thirty-one million, nine hundred eighty-nine thousand, one hundred six".