1214861 has 4 divisors (see below), whose sum is σ = 1218492. Its totient is φ = 1211232.

The previous prime is 1214849. The next prime is 1214867. The reversal of 1214861 is 1684121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1684121 = 257 ⋅6553.

It can be written as a sum of positive squares in 2 ways, for example, as 866761 + 348100 = 931^2 + 590^2 .

It is a cyclic number.

It is not a de Polignac number, because 1214861 - 2¹⁰ = 1213837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214867) 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, 1256 + ... + 2001.

It is an arithmetic number, because the mean of its divisors is an integer number (304623).

2^1214861 is an apocalyptic number.

It is an amenable number.

1214861 is a deficient number, since it is larger than the sum of its proper divisors (3631).

1214861 is an equidigital number, since it uses as much as digits as its factorization.

1214861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3630.

The product of its digits is 384, while the sum is 23.

The square root of 1214861 is about 1102.2073307686. The cubic root of 1214861 is about 106.7027297765.

Adding to 1214861 its reverse (1684121), we get a palindrome (2898982).

The spelling of 1214861 in words is "one million, two hundred fourteen thousand, eight hundred sixty-one".