1244212143 has 8 divisors (see below), whose sum is σ = 1716154800. Its totient is φ = 800872128.

The previous prime is 1244212141. The next prime is 1244212147. The reversal of 1244212143 is 3412124421.

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

It is not a de Polignac number, because 1244212143 - 2¹ = 1244212141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244212141) 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, 7150558 + ... + 7150731.

It is an arithmetic number, because the mean of its divisors is an integer number (214519350).

Almost surely, 2^1244212143 is an apocalyptic number.

1244212143 is a deficient number, since it is larger than the sum of its proper divisors (471942657).

1244212143 is a wasteful number, since it uses less digits than its factorization.

1244212143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14301321.

The product of its digits is 1536, while the sum is 24.

The square root of 1244212143 is about 35273.3914303686. The cubic root of 1244212143 is about 1075.5521642910.

Adding to 1244212143 its reverse (3412124421), we get a palindrome (4656336564).

The spelling of 1244212143 in words is "one billion, two hundred forty-four million, two hundred twelve thousand, one hundred forty-three".