1268412043 has 4 divisors (see below), whose sum is σ = 1268944488. Its totient is φ = 1267879600.

The previous prime is 1268412037. The next prime is 1268412049. The reversal of 1268412043 is 3402148621.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1268412037) and next prime (1268412049).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1268412043 is a prime.

It is a super-2 number, since 2×1268412043² = 3217738221654867698, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1268411996 and 1268412014.

It is not an unprimeable number, because it can be changed into a prime (1268412049) 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 3 ways as a sum of consecutive naturals, for example, 262633 + ... + 267418.

It is an arithmetic number, because the mean of its divisors is an integer number (317236122).

Almost surely, 2^1268412043 is an apocalyptic number.

1268412043 is a deficient number, since it is larger than the sum of its proper divisors (532445).

1268412043 is an equidigital number, since it uses as much as digits as its factorization.

1268412043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532444.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 1268412043 is about 35614.7728197163. The cubic root of 1268412043 is about 1082.4805929669.

The spelling of 1268412043 in words is "one billion, two hundred sixty-eight million, four hundred twelve thousand, forty-three".