2015001613 has 2 divisors, whose sum is σ = 2015001614. Its totient is φ = 2015001612.

The previous prime is 2015001533. The next prime is 2015001631. The reversal of 2015001613 is 3161005102.

Together with next prime (2015001631) 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., 1717024969 + 297976644 = 41437^2 + 17262^2 .

It is a cyclic number.

It is not a de Polignac number, because 2015001613 - 2⁹ = 2015001101 is a prime.

It is a super-3 number, since 3×2015001613³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2015001673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007500806 + 1007500807.

It is an arithmetic number, because the mean of its divisors is an integer number (1007500807).

Almost surely, 2^2015001613 is an apocalyptic number.

It is an amenable number.

2015001613 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015001613 is an equidigital number, since it uses as much as digits as its factorization.

2015001613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 2015001613 is about 44888.7693415625. The cubic root of 2015001613 is about 1263.0633476860.

Adding to 2015001613 its reverse (3161005102), we get a palindrome (5176006715).

The spelling of 2015001613 in words is "two billion, fifteen million, one thousand, six hundred thirteen".