1214421 has 8 divisors (see below), whose sum is σ = 1743840. Its totient is φ = 747312.

The previous prime is 1214417. The next prime is 1214431. The reversal of 1214421 is 1244121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1214421 - 2² = 1214417 is a prime.

1214421 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1214421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15531 + ... + 15608.

It is an arithmetic number, because the mean of its divisors is an integer number (217980).

2^1214421 is an apocalyptic number.

It is an amenable number.

1214421 is a deficient number, since it is larger than the sum of its proper divisors (529419).

1214421 is a wasteful number, since it uses less digits than its factorization.

1214421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31155.

The product of its digits is 64, while the sum is 15.

The square root of 1214421 is about 1102.0077132216. The cubic root of 1214421 is about 106.6898463080.

Adding to 1214421 its reverse (1244121), we get a palindrome (2458542).

The spelling of 1214421 in words is "one million, two hundred fourteen thousand, four hundred twenty-one".