1213453 has 8 divisors (see below), whose sum is σ = 1251360. Its totient is φ = 1176240.

The previous prime is 1213451. The next prime is 1213469. The reversal of 1213453 is 3543121.

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

It is a cyclic number.

It is not a de Polignac number, because 1213453 - 2¹ = 1213451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1213453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213451) 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 7 ways as a sum of consecutive naturals, for example, 7651 + ... + 7807.

It is an arithmetic number, because the mean of its divisors is an integer number (156420).

2^1213453 is an apocalyptic number.

It is an amenable number.

1213453 is a deficient number, since it is larger than the sum of its proper divisors (37907).

1213453 is a wasteful number, since it uses less digits than its factorization.

1213453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347.

The product of its digits is 360, while the sum is 19.

The square root of 1213453 is about 1101.5684272890. The cubic root of 1213453 is about 106.6614917194.

Adding to 1213453 its reverse (3543121), we get a palindrome (4756574).

The spelling of 1213453 in words is "one million, two hundred thirteen thousand, four hundred fifty-three".