1165608 has 24 divisors (see below), whose sum is σ = 3157050. Its totient is φ = 388512.

The previous prime is 1165583. The next prime is 1165643. The reversal of 1165608 is 8065611.

1165608 is a `hidden beast` number, since 1 + 1 + 656 + 0 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1004004 + 161604 = 1002^2 + 402^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8023 + ... + 8166.

2^1165608 is an apocalyptic number.

1165608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1165608 is an abundant number, since it is smaller than the sum of its proper divisors (1991442).

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

1165608 is a wasteful number, since it uses less digits than its factorization.

1165608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16201 (or 16194 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1165608 is about 1079.6332710694. The cubic root of 1165608 is about 105.2408078513.

The spelling of 1165608 in words is "one million, one hundred sixty-five thousand, six hundred eight".