1042881613 has 2 divisors, whose sum is σ = 1042881614. Its totient is φ = 1042881612.

The previous prime is 1042881569. The next prime is 1042881659. The reversal of 1042881613 is 3161882401.

1042881613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1018694889 + 24186724 = 31917^2 + 4918^2 .

It is an emirp because it is prime and its reverse (3161882401) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042881613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042881113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521440806 + 521440807.

It is an arithmetic number, because the mean of its divisors is an integer number (521440807).

Almost surely, 2^1042881613 is an apocalyptic number.

It is an amenable number.

1042881613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042881613 is an equidigital number, since it uses as much as digits as its factorization.

1042881613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 1042881613 is about 32293.6776010414. The cubic root of 1042881613 is about 1014.0942887526.

The spelling of 1042881613 in words is "one billion, forty-two million, eight hundred eighty-one thousand, six hundred thirteen".