1268211 has 16 divisors (see below), whose sum is σ = 1951488. Its totient is φ = 717600.

The previous prime is 1268207. The next prime is 1268213. The reversal of 1268211 is 1128621.

1268211 = 31² + 32² + ... + 156².

It is not a de Polignac number, because 1268211 - 2² = 1268207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1268213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2521 + ... + 2981.

It is an arithmetic number, because the mean of its divisors is an integer number (121968).

2^1268211 is an apocalyptic number.

1268211 is a deficient number, since it is larger than the sum of its proper divisors (683277).

1268211 is a wasteful number, since it uses less digits than its factorization.

1268211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602.

The product of its digits is 192, while the sum is 21.

The square root of 1268211 is about 1126.1487468359. The cubic root of 1268211 is about 108.2423398975.

The spelling of 1268211 in words is "one million, two hundred sixty-eight thousand, two hundred eleven".