2661031 has 8 divisors (see below), whose sum is σ = 2801664. Its totient is φ = 2522520.

The previous prime is 2661013. The next prime is 2661067. The reversal of 2661031 is 1301662.

2661031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2661031 - 2¹¹ = 2658983 is a prime.

It is a super-2 number, since 2×2661031² = 14162171965922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2466 + ... + 3376.

It is an arithmetic number, because the mean of its divisors is an integer number (350208).

2^2661031 is an apocalyptic number.

2661031 is a deficient number, since it is larger than the sum of its proper divisors (140633).

2661031 is a wasteful number, since it uses less digits than its factorization.

2661031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2661031 is about 1631.2666857384. The cubic root of 2661031 is about 138.5744971460.

Adding to 2661031 its reverse (1301662), we get a palindrome (3962693).

The spelling of 2661031 in words is "two million, six hundred sixty-one thousand, thirty-one".