201013541 has 4 divisors (see below), whose sum is σ = 201122400. Its totient is φ = 200904684.

The previous prime is 201013523. The next prime is 201013543. The reversal of 201013541 is 145310102.

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-201013541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201013543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51611 + ... + 55368.

It is an arithmetic number, because the mean of its divisors is an integer number (50280600).

Almost surely, 2^201013541 is an apocalyptic number.

It is an amenable number.

201013541 is a deficient number, since it is larger than the sum of its proper divisors (108859).

201013541 is a wasteful number, since it uses less digits than its factorization.

201013541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108858.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 201013541 is about 14177.9244249643. The cubic root of 201013541 is about 585.7897542001.

Adding to 201013541 its reverse (145310102), we get a palindrome (346323643).

It can be divided in two parts, 2010 and 13541, that added together give a palindrome (15551).

The spelling of 201013541 in words is "two hundred one million, thirteen thousand, five hundred forty-one".