2631065 has 4 divisors (see below), whose sum is σ = 3157284. Its totient is φ = 2104848.

The previous prime is 2631053. The next prime is 2631067. The reversal of 2631065 is 5601362.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 534361 + 2096704 = 731^2 + 1448^2 .

It is a cyclic number.

It is not a de Polignac number, because 2631065 - 2⁴ = 2631049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2631065.

It is not an unprimeable number, because it can be changed into a prime (2631067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263102 + ... + 263111.

It is an arithmetic number, because the mean of its divisors is an integer number (789321).

2^2631065 is an apocalyptic number.

It is an amenable number.

2631065 is a deficient number, since it is larger than the sum of its proper divisors (526219).

2631065 is an equidigital number, since it uses as much as digits as its factorization.

2631065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526218.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2631065 is about 1622.0557943548. The cubic root of 2631065 is about 138.0523675789.

The spelling of 2631065 in words is "two million, six hundred thirty-one thousand, sixty-five".