1221474 has 8 divisors (see below), whose sum is σ = 2442960. Its totient is φ = 407156.

The previous prime is 1221469. The next prime is 1221499. The reversal of 1221474 is 4741221.

It is a happy number.

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

1221474 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1221474.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101784 + ... + 101795.

It is an arithmetic number, because the mean of its divisors is an integer number (305370).

2^1221474 is an apocalyptic number.

1221474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1221474 is a wasteful number, since it uses less digits than its factorization.

1221474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203584.

The product of its digits is 448, while the sum is 21.

The square root of 1221474 is about 1105.2031487469. The cubic root of 1221474 is about 106.8959888329.

Adding to 1221474 its reverse (4741221), we get a palindrome (5962695).

It can be divided in two parts, 122 and 1474, that added together give a triangular number (1596 = T₅₆).

The spelling of 1221474 in words is "one million, two hundred twenty-one thousand, four hundred seventy-four".