1181608 has 16 divisors (see below), whose sum is σ = 2234880. Its totient is φ = 585648.

The previous prime is 1181581. The next prime is 1181611. The reversal of 1181608 is 8061811.

It is a happy 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, 435 + ... + 1597.

It is an arithmetic number, because the mean of its divisors is an integer number (139680).

2^1181608 is an apocalyptic number.

It is an amenable number.

1181608 is a deficient number, since it is larger than the sum of its proper divisors (1053272).

1181608 is a wasteful number, since it uses less digits than its factorization.

1181608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296 (or 1292 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 1181608 is about 1087.0179391344. The cubic root of 1181608 is about 105.7201589836.

The spelling of 1181608 in words is "one million, one hundred eighty-one thousand, six hundred eight".