1213006 has 4 divisors (see below), whose sum is σ = 1819512. Its totient is φ = 606502.

The previous prime is 1212989. The next prime is 1213007. The reversal of 1213006 is 6003121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6003121 = 71 ⋅84551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303250 + ... + 303253.

It is an arithmetic number, because the mean of its divisors is an integer number (454878).

2^1213006 is an apocalyptic number.

1213006 is a deficient number, since it is larger than the sum of its proper divisors (606506).

1213006 is an equidigital number, since it uses as much as digits as its factorization.

1213006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606505.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1213006 is about 1101.3655160754. The cubic root of 1213006 is about 106.6483931370.

Adding to 1213006 its reverse (6003121), we get a palindrome (7216127).

The spelling of 1213006 in words is "one million, two hundred thirteen thousand, six".