1231208 has 32 divisors (see below), whose sum is σ = 2669760. Its totient is φ = 526080.

The previous prime is 1231207. The next prime is 1231229. The reversal of 1231208 is 8021321.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (1231201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1085 + ... + 1907.

It is an arithmetic number, because the mean of its divisors is an integer number (83430).

2^1231208 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 1231208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1334880).

1231208 is an abundant number, since it is smaller than the sum of its proper divisors (1438552).

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

1231208 is a wasteful number, since it uses less digits than its factorization.

1231208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 853 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1231208 is about 1109.5981254490. The cubic root of 1231208 is about 107.1791914018.

Adding to 1231208 its reverse (8021321), we get a palindrome (9252529).

It can be divided in two parts, 123 and 1208, that added together give a palindrome (1331).

The spelling of 1231208 in words is "one million, two hundred thirty-one thousand, two hundred eight".