1035243989 has 4 divisors (see below), whose sum is σ = 1114878156. Its totient is φ = 955609824.

The previous prime is 1035243983. The next prime is 1035243991. The reversal of 1035243989 is 9893425301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 250683889 + 784560100 = 15833^2 + 28010^2 .

It is not a de Polignac number, because 1035243989 - 2²⁸ = 766808533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1035243983) 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 3 ways as a sum of consecutive naturals, for example, 39817064 + ... + 39817089.

It is an arithmetic number, because the mean of its divisors is an integer number (278719539).

Almost surely, 2^1035243989 is an apocalyptic number.

It is an amenable number.

1035243989 is a deficient number, since it is larger than the sum of its proper divisors (79634167).

1035243989 is an equidigital number, since it uses as much as digits as its factorization.

1035243989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79634166.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 1035243989 is about 32175.2076760974. The cubic root of 1035243989 is about 1011.6126213596.

The spelling of 1035243989 in words is "one billion, thirty-five million, two hundred forty-three thousand, nine hundred eighty-nine".