1268512 has 36 divisors (see below), whose sum is σ = 2908710. Its totient is φ = 542976.

The previous prime is 1268479. The next prime is 1268537. The reversal of 1268512 is 2158621.

It can be written as a sum of positive squares in only one way, i.e., 853776 + 414736 = 924^2 + 644^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1164 + ... + 1972.

2^1268512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1268512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1454355).

1268512 is an abundant number, since it is smaller than the sum of its proper divisors (1640198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1268512 is an equidigital number, since it uses as much as digits as its factorization.

1268512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833 (or 818 counting only the distinct ones).

The product of its digits is 960, while the sum is 25.

The square root of 1268512 is about 1126.2823802227. The cubic root of 1268512 is about 108.2509027121.

The spelling of 1268512 in words is "one million, two hundred sixty-eight thousand, five hundred twelve".