1211608 has 8 divisors (see below), whose sum is σ = 2271780. Its totient is φ = 605800.

The previous prime is 1211603. The next prime is 1211621. The reversal of 1211608 is 8061121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211603) by changing a digit.

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 as a sum of consecutive naturals, namely, 75718 + ... + 75733.

2^1211608 is an apocalyptic number.

It is an amenable number.

1211608 is a deficient number, since it is larger than the sum of its proper divisors (1060172).

1211608 is a wasteful number, since it uses less digits than its factorization.

1211608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151457 (or 151453 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 1211608 is about 1100.7306664212. The cubic root of 1211608 is about 106.6074063192.

Adding to 1211608 its reverse (8061121), we get a palindrome (9272729).

The spelling of 1211608 in words is "one million, two hundred eleven thousand, six hundred eight".