11161607 has 16 divisors (see below), whose sum is σ = 12441600. Its totient is φ = 9969120.

The previous prime is 11161603. The next prime is 11161609. The reversal of 11161607 is 70616111.

It is a cyclic number.

It is not a de Polignac number, because 11161607 - 2² = 11161603 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11161603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25682 + ... + 26112.

It is an arithmetic number, because the mean of its divisors is an integer number (777600).

Almost surely, 2^11161607 is an apocalyptic number.

11161607 is a deficient number, since it is larger than the sum of its proper divisors (1279993).

11161607 is a wasteful number, since it uses less digits than its factorization.

11161607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 11161607 is about 3340.8991304737. The cubic root of 11161607 is about 223.4818420187.

Adding to 11161607 its reverse (70616111), we get a palindrome (81777718).

The spelling of 11161607 in words is "eleven million, one hundred sixty-one thousand, six hundred seven".