2631061 has 4 divisors (see below), whose sum is σ = 2634732. Its totient is φ = 2627392.

The previous prime is 2631053. The next prime is 2631067. The reversal of 2631061 is 1601362.

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 1874161 + 756900 = 1369^2 + 870^2 .

It is a cyclic number.

It is not a de Polignac number, because 2631061 - 2³ = 2631053 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 (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, 370 + ... + 2323.

It is an arithmetic number, because the mean of its divisors is an integer number (658683).

2^2631061 is an apocalyptic number.

It is an amenable number.

2631061 is a deficient number, since it is larger than the sum of its proper divisors (3671).

2631061 is an equidigital number, since it uses as much as digits as its factorization.

2631061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670.

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

The square root of 2631061 is about 1622.0545613511. The cubic root of 2631061 is about 138.0522976187.

The spelling of 2631061 in words is "two million, six hundred thirty-one thousand, sixty-one".