1268253206 has 16 divisors (see below), whose sum is σ = 2075870160. Its totient is φ = 576326880.

The previous prime is 1268253187. The next prime is 1268253221. The reversal of 1268253206 is 6023528621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161540 + ... + 169208.

It is an arithmetic number, because the mean of its divisors is an integer number (129741885).

Almost surely, 2^1268253206 is an apocalyptic number.

1268253206 is a deficient number, since it is larger than the sum of its proper divisors (807616954).

1268253206 is a wasteful number, since it uses less digits than its factorization.

1268253206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15199.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 1268253206 is about 35612.5428185071. The cubic root of 1268253206 is about 1082.4354065076.

It can be divided in two parts, 126825 and 3206, that added together give a palindrome (130031).

The spelling of 1268253206 in words is "one billion, two hundred sixty-eight million, two hundred fifty-three thousand, two hundred six".