1042985959 has 4 divisors (see below), whose sum is σ = 1043247600. Its totient is φ = 1042724320.

The previous prime is 1042985939. The next prime is 1042985963. The reversal of 1042985959 is 9595892401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9595892401 = 283 ⋅33907747.

It is a cyclic number.

It is not a de Polignac number, because 1042985959 - 2¹¹ = 1042983911 is a prime.

It is a super-2 number, since 2×1042985959² = 2175639421342299362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042985939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124747 + ... + 132844.

It is an arithmetic number, because the mean of its divisors is an integer number (260811900).

Almost surely, 2^1042985959 is an apocalyptic number.

1042985959 is a deficient number, since it is larger than the sum of its proper divisors (261641).

1042985959 is an equidigital number, since it uses as much as digits as its factorization.

1042985959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261640.

The product of its (nonzero) digits is 1166400, while the sum is 52.

The square root of 1042985959 is about 32295.2931400227. The cubic root of 1042985959 is about 1014.1281095149.

The spelling of 1042985959 in words is "one billion, forty-two million, nine hundred eighty-five thousand, nine hundred fifty-nine".