1075043989 has 8 divisors (see below), whose sum is σ = 1147874112. Its totient is φ = 1004388000.

The previous prime is 1075043987. The next prime is 1075043993. The reversal of 1075043989 is 9893405701.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1075043989 - 2¹ = 1075043987 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 (1075043987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542512 + ... + 544489.

It is an arithmetic number, because the mean of its divisors is an integer number (143484264).

Almost surely, 2^1075043989 is an apocalyptic number.

It is an amenable number.

1075043989 is a deficient number, since it is larger than the sum of its proper divisors (72830123).

1075043989 is a wasteful number, since it uses less digits than its factorization.

1075043989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087067.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 1075043989 is about 32787.8634406086. The cubic root of 1075043989 is about 1024.4137798819.

The spelling of 1075043989 in words is "one billion, seventy-five million, forty-three thousand, nine hundred eighty-nine".