539646013 has 2 divisors, whose sum is σ = 539646014. Its totient is φ = 539646012.

The previous prime is 539645989. The next prime is 539646031. The reversal of 539646013 is 310646935.

Together with next prime (539646031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 277788889 + 261857124 = 16667^2 + 16182^2 .

It is a cyclic number.

It is not a de Polignac number, because 539646013 - 2²¹ = 537548861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (539646043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269823006 + 269823007.

It is an arithmetic number, because the mean of its divisors is an integer number (269823007).

Almost surely, 2^539646013 is an apocalyptic number.

It is an amenable number.

539646013 is a deficient number, since it is larger than the sum of its proper divisors (1).

539646013 is an equidigital number, since it uses as much as digits as its factorization.

539646013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 539646013 is about 23230.2822410749. The cubic root of 539646013 is about 814.1473074627.

The spelling of 539646013 in words is "five hundred thirty-nine million, six hundred forty-six thousand, thirteen".