201138196 has 24 divisors (see below), whose sum is σ = 402784256. Its totient is φ = 86093280.

The previous prime is 201138193. The next prime is 201138211. The reversal of 201138196 is 691831102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201138193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20461 + ... + 28651.

Almost surely, 2^201138196 is an apocalyptic number.

It is an amenable number.

201138196 is an abundant number, since it is smaller than the sum of its proper divisors (201646060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201138196 is a wasteful number, since it uses less digits than its factorization.

201138196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9079 (or 9077 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 201138196 is about 14182.3198384467. The cubic root of 201138196 is about 585.9108182377.

Adding to 201138196 its reverse (691831102), we get a palindrome (892969298).

The spelling of 201138196 in words is "two hundred one million, one hundred thirty-eight thousand, one hundred ninety-six".