11820164 has 6 divisors (see below), whose sum is σ = 20685294. Its totient is φ = 5910080.

The previous prime is 11820161. The next prime is 11820167. The reversal of 11820164 is 46102811.

It is an interprime number because it is at equal distance from previous prime (11820161) and next prime (11820167).

It can be written as a sum of positive squares in only one way, i.e., 6980164 + 4840000 = 2642^2 + 2200^2 .

It is not an unprimeable number, because it can be changed into a prime (11820161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1477517 + ... + 1477524.

It is an arithmetic number, because the mean of its divisors is an integer number (3447549).

Almost surely, 2^11820164 is an apocalyptic number.

It is an amenable number.

11820164 is a deficient number, since it is larger than the sum of its proper divisors (8865130).

11820164 is a wasteful number, since it uses less digits than its factorization.

11820164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2955045 (or 2955043 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 11820164 is about 3438.0465383703. The cubic root of 11820164 is about 227.7934160369.

Adding to 11820164 its reverse (46102811), we get a palindrome (57922975).

The spelling of 11820164 in words is "eleven million, eight hundred twenty thousand, one hundred sixty-four".