42986513 has 2 divisors, whose sum is σ = 42986514. Its totient is φ = 42986512.

The previous prime is 42986483. The next prime is 42986519. The reversal of 42986513 is 31568924.

It is a happy number.

42986513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24522304 + 18464209 = 4952^2 + 4297^2 .

It is a cyclic number.

It is not a de Polignac number, because 42986513 - 2⁸ = 42986257 is a prime.

It is not a weakly prime, because it can be changed into another prime (42986519) 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 as a sum of consecutive naturals, namely, 21493256 + 21493257.

It is an arithmetic number, because the mean of its divisors is an integer number (21493257).

Almost surely, 2^42986513 is an apocalyptic number.

It is an amenable number.

42986513 is a deficient number, since it is larger than the sum of its proper divisors (1).

42986513 is an equidigital number, since it uses as much as digits as its factorization.

42986513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 42986513 is about 6556.4100695426. The cubic root of 42986513 is about 350.3031740460.

The spelling of 42986513 in words is "forty-two million, nine hundred eighty-six thousand, five hundred thirteen".