1268929 has 2 divisors, whose sum is σ = 1268930. Its totient is φ = 1268928.

The previous prime is 1268921. The next prime is 1268947. The reversal of 1268929 is 9298621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 859329 + 409600 = 927^2 + 640^2 .

It is a cyclic number.

It is not a de Polignac number, because 1268929 - 2³ = 1268921 is a prime.

It is a super-2 number, since 2×1268929² = 3220361614082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1268921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634464 + 634465.

It is an arithmetic number, because the mean of its divisors is an integer number (634465).

2^1268929 is an apocalyptic number.

It is an amenable number.

1268929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268929 is an equidigital number, since it uses as much as digits as its factorization.

1268929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 37.

The square root of 1268929 is about 1126.4674873249. The cubic root of 1268929 is about 108.2627632440.

It can be divided in two parts, 1268 and 929, that added together give a cube (2197 = 13³).

The spelling of 1268929 in words is "one million, two hundred sixty-eight thousand, nine hundred twenty-nine".