1291208 has 16 divisors (see below), whose sum is σ = 2446080. Its totient is φ = 638928.

The previous prime is 1291193. The next prime is 1291211. The reversal of 1291208 is 8021921.

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 3 ways as a sum of consecutive naturals, for example, 41 + ... + 1607.

It is an arithmetic number, because the mean of its divisors is an integer number (152880).

2^1291208 is an apocalyptic number.

It is an amenable number.

1291208 is a deficient number, since it is larger than the sum of its proper divisors (1154872).

1291208 is a wasteful number, since it uses less digits than its factorization.

1291208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676 (or 1672 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1291208 is about 1136.3133370686. The cubic root of 1291208 is about 108.8926924181.

The spelling of 1291208 in words is "one million, two hundred ninety-one thousand, two hundred eight".