213013541 has 32 divisors (see below), whose sum is σ = 251596800. Its totient is φ = 178649280.

The previous prime is 213013517. The next prime is 213013543. The reversal of 213013541 is 145310312.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213013541 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213013543) 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, 684776 + ... + 685086.

It is an arithmetic number, because the mean of its divisors is an integer number (7862400).

Almost surely, 2^213013541 is an apocalyptic number.

It is an amenable number.

213013541 is a deficient number, since it is larger than the sum of its proper divisors (38583259).

213013541 is a wasteful number, since it uses less digits than its factorization.

213013541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 213013541 is about 14594.9834189697. The cubic root of 213013541 is about 597.2219171301.

Adding to 213013541 its reverse (145310312), we get a palindrome (358323853).

It can be divided in two parts, 21301 and 3541, that added together give a palindrome (24842).

The spelling of 213013541 in words is "two hundred thirteen million, thirteen thousand, five hundred forty-one".