1331608 has 16 divisors (see below), whose sum is σ = 2605680. Its totient is φ = 636768.

The previous prime is 1331599. The next prime is 1331611. The reversal of 1331608 is 8061331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3435 + ... + 3802.

It is an arithmetic number, because the mean of its divisors is an integer number (162855).

2^1331608 is an apocalyptic number.

It is an amenable number.

1331608 is a deficient number, since it is larger than the sum of its proper divisors (1274072).

1331608 is a wasteful number, since it uses less digits than its factorization.

1331608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7266 (or 7262 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1331608 is about 1153.9532052904. The cubic root of 1331608 is about 110.0167467616.

Adding to 1331608 its reverse (8061331), we get a palindrome (9392939).

The spelling of 1331608 in words is "one million, three hundred thirty-one thousand, six hundred eight".