1268812105 has 16 divisors (see below), whose sum is σ = 1666880064. Its totient is φ = 919500480.

The previous prime is 1268812091. The next prime is 1268812157. The reversal of 1268812105 is 5012188621.

1268812105 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1268812105 - 2⁷ = 1268811977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25194 + ... + 56323.

It is an arithmetic number, because the mean of its divisors is an integer number (104180004).

Almost surely, 2^1268812105 is an apocalyptic number.

It is an amenable number.

1268812105 is a deficient number, since it is larger than the sum of its proper divisors (398067959).

1268812105 is a wasteful number, since it uses less digits than its factorization.

1268812105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81816.

The product of its (nonzero) digits is 7680, while the sum is 34.

The square root of 1268812105 is about 35620.3888945643. The cubic root of 1268812105 is about 1082.5943871743.

The spelling of 1268812105 in words is "one billion, two hundred sixty-eight million, eight hundred twelve thousand, one hundred five".