2109461 has 2 divisors, whose sum is σ = 2109462. Its totient is φ = 2109460.

The previous prime is 2109449. The next prime is 2109509. The reversal of 2109461 is 1649012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1168561 + 940900 = 1081^2 + 970^2 .

It is a cyclic number.

It is not a de Polignac number, because 2109461 - 2¹⁰ = 2108437 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2109421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054730 + 1054731.

It is an arithmetic number, because the mean of its divisors is an integer number (1054731).

2^2109461 is an apocalyptic number.

It is an amenable number.

2109461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2109461 is an equidigital number, since it uses as much as digits as its factorization.

2109461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 2109461 is about 1452.3983613320. The cubic root of 2109461 is about 128.2499388859.

The spelling of 2109461 in words is "two million, one hundred nine thousand, four hundred sixty-one".