2102461 has 2 divisors, whose sum is σ = 2102462. Its totient is φ = 2102460.

The previous prime is 2102459. The next prime is 2102467. The reversal of 2102461 is 1642012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1454436 + 648025 = 1206^2 + 805^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102461 - 2¹ = 2102459 is a prime.

Together with 2102459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051230 + 1051231.

It is an arithmetic number, because the mean of its divisors is an integer number (1051231).

2^2102461 is an apocalyptic number.

It is an amenable number.

2102461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102461 is an equidigital number, since it uses as much as digits as its factorization.

2102461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2102461 is about 1449.9865516618. The cubic root of 2102461 is about 128.1079208644.

Adding to 2102461 its reverse (1642012), we get a palindrome (3744473).

The spelling of 2102461 in words is "two million, one hundred two thousand, four hundred sixty-one".