1243214041 has 4 divisors (see below), whose sum is σ = 1243315684. Its totient is φ = 1243112400.

The previous prime is 1243214003. The next prime is 1243214051. The reversal of 1243214041 is 1404123421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1404123421 = 29 ⋅48418049.

It can be written as a sum of positive squares in 2 ways, for example, as 898740441 + 344473600 = 29979^2 + 18560^2 .

It is a cyclic number.

It is not a de Polignac number, because 1243214041 - 2⁷ = 1243213913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1243214051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29490 + ... + 57931.

It is an arithmetic number, because the mean of its divisors is an integer number (310828921).

Almost surely, 2^1243214041 is an apocalyptic number.

It is an amenable number.

1243214041 is a deficient number, since it is larger than the sum of its proper divisors (101643).

1243214041 is an equidigital number, since it uses as much as digits as its factorization.

1243214041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101642.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1243214041 is about 35259.2405051499. The cubic root of 1243214041 is about 1075.2644861391.

Adding to 1243214041 its reverse (1404123421), we get a palindrome (2647337462).

The spelling of 1243214041 in words is "one billion, two hundred forty-three million, two hundred fourteen thousand, forty-one".