1213004 has 12 divisors (see below), whose sum is σ = 2286144. Its totient is φ = 559824.

The previous prime is 1212989. The next prime is 1213007. The reversal of 1213004 is 4003121.

1213004 = 157² + 158² + ... + 195².

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1213007) 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, 11612 + ... + 11715.

It is an arithmetic number, because the mean of its divisors is an integer number (190512).

2^1213004 is an apocalyptic number.

It is an amenable number.

1213004 is a deficient number, since it is larger than the sum of its proper divisors (1073140).

1213004 is a wasteful number, since it uses less digits than its factorization.

1213004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23344 (or 23342 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1213004 is about 1101.3646081112. The cubic root of 1213004 is about 106.6483345232.

Adding to 1213004 its reverse (4003121), we get a palindrome (5216125).

It can be divided in two parts, 121 and 3004, that added together give a 5-th power (3125 = 5⁵).

The spelling of 1213004 in words is "one million, two hundred thirteen thousand, four".