42913093 has 6 divisors (see below), whose sum is σ = 43740914. Its totient is φ = 42100656.

The previous prime is 42913067. The next prime is 42913103. The reversal of 42913093 is 39031924.

42913093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 5678689 + 37234404 = 2383^2 + 6102^2 .

It is a de Polignac number, because none of the positive numbers 2^k-42913093 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 (42913693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4830 + ... + 10447.

Almost surely, 2^42913093 is an apocalyptic number.

It is an amenable number.

42913093 is a deficient number, since it is larger than the sum of its proper divisors (827821).

42913093 is an equidigital number, since it uses as much as digits as its factorization.

42913093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15383 (or 15330 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 42913093 is about 6550.8085760462. The cubic root of 42913093 is about 350.1036237391.

The spelling of 42913093 in words is "forty-two million, nine hundred thirteen thousand, ninety-three".