2193461 has 4 divisors (see below), whose sum is σ = 2216172. Its totient is φ = 2170752.

The previous prime is 2193449. The next prime is 2193463. The reversal of 2193461 is 1643912.

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 970225 + 1223236 = 985^2 + 1106^2 .

It is a cyclic number.

It is not a de Polignac number, because 2193461 - 2¹⁸ = 1931317 is a prime.

It is a super-2 number, since 2×2193461² = 9622542317042, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2193461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2193463) 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, 11210 + ... + 11403.

It is an arithmetic number, because the mean of its divisors is an integer number (554043).

2^2193461 is an apocalyptic number.

It is an amenable number.

2193461 is a deficient number, since it is larger than the sum of its proper divisors (22711).

2193461 is an equidigital number, since it uses as much as digits as its factorization.

2193461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22710.

The product of its digits is 1296, while the sum is 26.

The square root of 2193461 is about 1481.0337605875. The cubic root of 2193461 is about 129.9301597249.

The spelling of 2193461 in words is "two million, one hundred ninety-three thousand, four hundred sixty-one".