1212343 has 8 divisors (see below), whose sum is σ = 1330560. Its totient is φ = 1095480.

The previous prime is 1212331. The next prime is 1212347. The reversal of 1212343 is 3432121.

It is a happy number.

1212343 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212343 is a prime.

It is an alternating number because its digits alternate between odd and even.

1212343 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3198 + ... + 3556.

It is an arithmetic number, because the mean of its divisors is an integer number (166320).

2^1212343 is an apocalyptic number.

1212343 is a deficient number, since it is larger than the sum of its proper divisors (118217).

1212343 is a wasteful number, since it uses less digits than its factorization.

1212343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677.

The product of its digits is 144, while the sum is 16.

The square root of 1212343 is about 1101.0644849417. The cubic root of 1212343 is about 106.6289591109.

Adding to 1212343 its reverse (3432121), we get a palindrome (4644464).

The spelling of 1212343 in words is "one million, two hundred twelve thousand, three hundred forty-three".