2015081 has 2 divisors, whose sum is σ = 2015082. Its totient is φ = 2015080.

The previous prime is 2015071. The next prime is 2015087. The reversal of 2015081 is 1805102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1537600 + 477481 = 1240^2 + 691^2 .

It is a cyclic number.

It is not a de Polignac number, because 2015081 - 2¹⁴ = 1998697 is a prime.

It is a super-2 number, since 2×2015081² = 8121102873122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2015087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007540 + 1007541.

It is an arithmetic number, because the mean of its divisors is an integer number (1007541).

2^2015081 is an apocalyptic number.

It is an amenable number.

2015081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015081 is an equidigital number, since it uses as much as digits as its factorization.

2015081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 2015081 is about 1419.5354874042. The cubic root of 2015081 is about 126.3079934851.

The spelling of 2015081 in words is "two million, fifteen thousand, eighty-one".