11816201 has 2 divisors, whose sum is σ = 11816202. Its totient is φ = 11816200.

The previous prime is 11816197. The next prime is 11816213. The reversal of 11816201 is 10261811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10086976 + 1729225 = 3176^2 + 1315^2 .

It is a cyclic number.

It is not a de Polignac number, because 11816201 - 2² = 11816197 is a prime.

It is not a weakly prime, because it can be changed into another prime (11816221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5908100 + 5908101.

It is an arithmetic number, because the mean of its divisors is an integer number (5908101).

Almost surely, 2^11816201 is an apocalyptic number.

It is an amenable number.

11816201 is a deficient number, since it is larger than the sum of its proper divisors (1).

11816201 is an equidigital number, since it uses as much as digits as its factorization.

11816201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 20.

The square root of 11816201 is about 3437.4701453249. The cubic root of 11816201 is about 227.7679554140.

The spelling of 11816201 in words is "eleven million, eight hundred sixteen thousand, two hundred one".