1214561 has 4 divisors (see below), whose sum is σ = 1267392. Its totient is φ = 1161732.

The previous prime is 1214533. The next prime is 1214567. The reversal of 1214561 is 1654121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1214561 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1214567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26381 + ... + 26426.

It is an arithmetic number, because the mean of its divisors is an integer number (316848).

2^1214561 is an apocalyptic number.

It is an amenable number.

1214561 is a deficient number, since it is larger than the sum of its proper divisors (52831).

1214561 is an equidigital number, since it uses as much as digits as its factorization.

1214561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52830.

The product of its digits is 240, while the sum is 20.

The square root of 1214561 is about 1102.0712318176. The cubic root of 1214561 is about 106.6939459309.

Adding to 1214561 its reverse (1654121), we get a palindrome (2868682).

The spelling of 1214561 in words is "one million, two hundred fourteen thousand, five hundred sixty-one".