2661061 has 8 divisors (see below), whose sum is σ = 3034584. Its totient is φ = 2311680.

The previous prime is 2661013. The next prime is 2661067. The reversal of 2661061 is 1601662.

It can be written as a sum of positive squares in 4 ways, for example, as 429025 + 2232036 = 655^2 + 1494^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2661061 - 2¹⁹ = 2136773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5800 + ... + 6241.

It is an arithmetic number, because the mean of its divisors is an integer number (379323).

2^2661061 is an apocalyptic number.

It is an amenable number.

2661061 is a deficient number, since it is larger than the sum of its proper divisors (373523).

2661061 is a wasteful number, since it uses less digits than its factorization.

2661061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12071.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 2661061 is about 1631.2758810207. The cubic root of 2661061 is about 138.5750178989.

The spelling of 2661061 in words is "two million, six hundred sixty-one thousand, sixty-one".