201135441 has 16 divisors (see below), whose sum is σ = 296617664. Its totient is φ = 120429504.

The previous prime is 201135433. The next prime is 201135443. The reversal of 201135441 is 144531102.

It is not a de Polignac number, because 201135441 - 2³ = 201135433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201135443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68251 + ... + 71136.

It is an arithmetic number, because the mean of its divisors is an integer number (18538604).

Almost surely, 2^201135441 is an apocalyptic number.

It is an amenable number.

201135441 is a deficient number, since it is larger than the sum of its proper divisors (95482223).

201135441 is a wasteful number, since it uses less digits than its factorization.

201135441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139440.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 201135441 is about 14182.2227101396. Note that the first 3 decimals coincide. The cubic root of 201135441 is about 585.9081431422.

Adding to 201135441 its reverse (144531102), we get a palindrome (345666543).

The spelling of 201135441 in words is "two hundred one million, one hundred thirty-five thousand, four hundred forty-one".