201226361 has 4 divisors (see below), whose sum is σ = 229972992. Its totient is φ = 172479732.

The previous prime is 201226339. The next prime is 201226381. The reversal of 201226361 is 163622102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201226361 is a prime.

It is a super-2 number, since 2×201226361² = 80984096722604642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201226381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14373305 + ... + 14373318.

It is an arithmetic number, because the mean of its divisors is an integer number (57493248).

Almost surely, 2^201226361 is an apocalyptic number.

It is an amenable number.

201226361 is a deficient number, since it is larger than the sum of its proper divisors (28746631).

201226361 is an equidigital number, since it uses as much as digits as its factorization.

201226361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28746630.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 201226361 is about 14185.4277693695. The cubic root of 201226361 is about 585.9964132541.

Adding to 201226361 its reverse (163622102), we get a palindrome (364848463).

The spelling of 201226361 in words is "two hundred one million, two hundred twenty-six thousand, three hundred sixty-one".