3509081 has 2 divisors, whose sum is σ = 3509082. Its totient is φ = 3509080.

The previous prime is 3509071. The next prime is 3509113. The reversal of 3509081 is 1809053.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1795600 + 1713481 = 1340^2 + 1309^2 .

It is a cyclic number.

It is not a de Polignac number, because 3509081 - 2⁶ = 3509017 is a prime.

It is a super-2 number, since 2×3509081² = 24627298929122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3509081.

It is not a weakly prime, because it can be changed into another prime (3509071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1754540 + 1754541.

It is an arithmetic number, because the mean of its divisors is an integer number (1754541).

Almost surely, 2^3509081 is an apocalyptic number.

It is an amenable number.

3509081 is a deficient number, since it is larger than the sum of its proper divisors (1).

3509081 is an equidigital number, since it uses as much as digits as its factorization.

3509081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 3509081 is about 1873.2541205079. The cubic root of 3509081 is about 151.9606459752.

The spelling of 3509081 in words is "three million, five hundred nine thousand, eighty-one".