201040501 has 16 divisors (see below), whose sum is σ = 217002240. Its totient is φ = 185664960.

The previous prime is 201040457. The next prime is 201040517. The reversal of 201040501 is 105040102.

It is not a de Polignac number, because 201040501 - 2⁹ = 201039989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201040531) 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, 181716 + ... + 182818.

It is an arithmetic number, because the mean of its divisors is an integer number (13562640).

Almost surely, 2^201040501 is an apocalyptic number.

It is an amenable number.

201040501 is a deficient number, since it is larger than the sum of its proper divisors (15961739).

201040501 is a wasteful number, since it uses less digits than its factorization.

201040501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 201040501 is about 14178.8751669517. The cubic root of 201040501 is about 585.8159417987.

Adding to 201040501 its reverse (105040102), we get a palindrome (306080603).

The spelling of 201040501 in words is "two hundred one million, forty thousand, five hundred one".