2106461 has 6 divisors (see below), whose sum is σ = 2450430. Its totient is φ = 1805496.

The previous prime is 2106451. The next prime is 2106463. The reversal of 2106461 is 1646012.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1768900 + 337561 = 1330^2 + 581^2 .

It is not a de Polignac number, because 2106461 - 2¹⁸ = 1844317 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 (2106463) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21446 + ... + 21543.

It is an arithmetic number, because the mean of its divisors is an integer number (408405).

2^2106461 is an apocalyptic number.

It is an amenable number.

2106461 is a deficient number, since it is larger than the sum of its proper divisors (343969).

2106461 is an equidigital number, since it uses as much as digits as its factorization.

2106461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43003 (or 42996 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2106461 is about 1451.3652193711. The cubic root of 2106461 is about 128.1891125495.

The spelling of 2106461 in words is "two million, one hundred six thousand, four hundred sixty-one".