11601109 has 8 divisors (see below), whose sum is σ = 12534200. Its totient is φ = 10673856.

The previous prime is 11601101. The next prime is 11601113. The reversal of 11601109 is 90110611.

It can be written as a sum of positive squares in 4 ways, for example, as 908209 + 10692900 = 953^2 + 3270^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11601109 - 2³ = 11601101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11601101) 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, 3259 + ... + 5815.

It is an arithmetic number, because the mean of its divisors is an integer number (1566775).

Almost surely, 2^11601109 is an apocalyptic number.

It is an amenable number.

11601109 is a deficient number, since it is larger than the sum of its proper divisors (933091).

11601109 is a wasteful number, since it uses less digits than its factorization.

11601109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919.

The product of its (nonzero) digits is 54, while the sum is 19.

The square root of 11601109 is about 3406.0400761001. The cubic root of 11601109 is about 226.3774528879.

The spelling of 11601109 in words is "eleven million, six hundred one thousand, one hundred nine".