1212143 has 8 divisors (see below), whose sum is σ = 1288320. Its totient is φ = 1137240.

The previous prime is 1212121. The next prime is 1212149. The reversal of 1212143 is 3412121.

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 1212143 - 2¹⁴ = 1195759 is a prime.

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

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212149) 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, 2246 + ... + 2732.

It is an arithmetic number, because the mean of its divisors is an integer number (161040).

2^1212143 is an apocalyptic number.

1212143 is a deficient number, since it is larger than the sum of its proper divisors (76177).

1212143 is a wasteful number, since it uses less digits than its factorization.

1212143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637.

The product of its digits is 48, while the sum is 14.

The square root of 1212143 is about 1100.9736599937. The cubic root of 1212143 is about 106.6230952685.

Adding to 1212143 its reverse (3412121), we get a palindrome (4624264).

The spelling of 1212143 in words is "one million, two hundred twelve thousand, one hundred forty-three".