1214813 has 4 divisors (see below), whose sum is σ = 1237788. Its totient is φ = 1191840.

The previous prime is 1214767. The next prime is 1214819. The reversal of 1214813 is 3184121.

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 727609 + 487204 = 853^2 + 698^2 .

It is a cyclic number.

It is not a de Polignac number, because 1214813 - 2⁶ = 1214749 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 (1214819) 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, 11408 + ... + 11513.

It is an arithmetic number, because the mean of its divisors is an integer number (309447).

2^1214813 is an apocalyptic number.

It is an amenable number.

1214813 is a deficient number, since it is larger than the sum of its proper divisors (22975).

1214813 is an equidigital number, since it uses as much as digits as its factorization.

1214813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22974.

The product of its digits is 192, while the sum is 20.

The square root of 1214813 is about 1102.1855560658. The cubic root of 1214813 is about 106.7013244584.

Adding to 1214813 its reverse (3184121), we get a palindrome (4398934).

The spelling of 1214813 in words is "one million, two hundred fourteen thousand, eight hundred thirteen".