201245541 has 32 divisors (see below), whose sum is σ = 325916928. Its totient is φ = 107827200.

The previous prime is 201245531. The next prime is 201245543. The reversal of 201245541 is 145542102.

It is not a de Polignac number, because 201245541 - 2⁶ = 201245477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201245543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110841 + ... + 112641.

It is an arithmetic number, because the mean of its divisors is an integer number (10184904).

Almost surely, 2^201245541 is an apocalyptic number.

201245541 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

201245541 is a deficient number, since it is larger than the sum of its proper divisors (124671387).

201245541 is a wasteful number, since it uses less digits than its factorization.

201245541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2141.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 201245541 is about 14186.1037991409. The cubic root of 201245541 is about 586.0150308515.

Adding to 201245541 its reverse (145542102), we get a palindrome (346787643).

The spelling of 201245541 in words is "two hundred one million, two hundred forty-five thousand, five hundred forty-one".