1221274 has 8 divisors (see below), whose sum is σ = 1837620. Its totient is φ = 608736.

The previous prime is 1221251. The next prime is 1221289. The reversal of 1221274 is 4721221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 986049 + 235225 = 993^2 + 485^2 .

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

It is a congruent number.

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, 72 + ... + 1564.

2^1221274 is an apocalyptic number.

1221274 is a deficient number, since it is larger than the sum of its proper divisors (616346).

1221274 is a wasteful number, since it uses less digits than its factorization.

1221274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904.

The product of its digits is 224, while the sum is 19.

The square root of 1221274 is about 1105.1126639397. The cubic root of 1221274 is about 106.8901542525.

Adding to 1221274 its reverse (4721221), we get a palindrome (5942495).

The spelling of 1221274 in words is "one million, two hundred twenty-one thousand, two hundred seventy-four".