1243412829 has 8 divisors (see below), whose sum is σ = 1842093120. Its totient is φ = 828941868.

The previous prime is 1243412809. The next prime is 1243412851. The reversal of 1243412829 is 9282143421.

It is not a de Polignac number, because 1243412829 - 2¹⁶ = 1243347293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1243412793 and 1243412802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243412809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23026137 + ... + 23026190.

It is an arithmetic number, because the mean of its divisors is an integer number (230261640).

Almost surely, 2^1243412829 is an apocalyptic number.

It is an amenable number.

1243412829 is a deficient number, since it is larger than the sum of its proper divisors (598680291).

1243412829 is an equidigital number, since it uses as much as digits as its factorization.

1243412829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46052336 (or 46052330 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 1243412829 is about 35262.0593414508. The cubic root of 1243412829 is about 1075.3217941268.

The spelling of 1243412829 in words is "one billion, two hundred forty-three million, four hundred twelve thousand, eight hundred twenty-nine".