11650601 has 4 divisors (see below), whose sum is σ = 11934804. Its totient is φ = 11366400.

The previous prime is 11650579. The next prime is 11650607. The reversal of 11650601 is 10605611.

It is a happy number.

11650601 is nontrivially palindromic in base 5.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10605611 = 1091 ⋅9721.

It can be written as a sum of positive squares in 2 ways, for example, as 1081600 + 10569001 = 1040^2 + 3251^2 .

It is a cyclic number.

It is not a de Polignac number, because 11650601 - 2⁶ = 11650537 is a prime.

It is a super-2 number, since 2×11650601² = 271473007322402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11650607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142040 + ... + 142121.

It is an arithmetic number, because the mean of its divisors is an integer number (2983701).

Almost surely, 2^11650601 is an apocalyptic number.

It is an amenable number.

11650601 is a deficient number, since it is larger than the sum of its proper divisors (284203).

11650601 is an equidigital number, since it uses as much as digits as its factorization.

11650601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284202.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 11650601 is about 3413.2976723398. The cubic root of 11650601 is about 226.6989157787.

The spelling of 11650601 in words is "eleven million, six hundred fifty thousand, six hundred one".