201226136 has 16 divisors (see below), whose sum is σ = 377711640. Its totient is φ = 100503040.

The previous prime is 201226133. The next prime is 201226147. The reversal of 201226136 is 631622102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201226133) 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, 5705 + ... + 20856.

Almost surely, 2^201226136 is an apocalyptic number.

It is an amenable number.

201226136 is a deficient number, since it is larger than the sum of its proper divisors (176485504).

201226136 is a wasteful number, since it uses less digits than its factorization.

201226136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27514 (or 27510 counting only the distinct ones).

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

The square root of 201226136 is about 14185.4198386935. The cubic root of 201226136 is about 585.9961948446.

Adding to 201226136 its reverse (631622102), we get a palindrome (832848238).

The spelling of 201226136 in words is "two hundred one million, two hundred twenty-six thousand, one hundred thirty-six".