11645201 has 4 divisors (see below), whose sum is σ = 11674932. Its totient is φ = 11615472.

The previous prime is 11645197. The next prime is 11645219. The reversal of 11645201 is 10254611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10254611 = 109 ⋅94079.

It can be written as a sum of positive squares in 2 ways, for example, as 8673025 + 2972176 = 2945^2 + 1724^2 .

It is a cyclic number.

It is not a de Polignac number, because 11645201 - 2² = 11645197 is a prime.

It is a super-2 number, since 2×11645201² = 271221412660802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11642201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14270 + ... + 15063.

It is an arithmetic number, because the mean of its divisors is an integer number (2918733).

Almost surely, 2^11645201 is an apocalyptic number.

It is an amenable number.

11645201 is a deficient number, since it is larger than the sum of its proper divisors (29731).

11645201 is an equidigital number, since it uses as much as digits as its factorization.

11645201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29730.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 11645201 is about 3412.5065567703. The cubic root of 11645201 is about 226.6638857310.

Adding to 11645201 its reverse (10254611), we get a palindrome (21899812).

The spelling of 11645201 in words is "eleven million, six hundred forty-five thousand, two hundred one".