220920541 has 8 divisors (see below), whose sum is σ = 226949184. Its totient is φ = 214932480.

The previous prime is 220920533. The next prime is 220920569. The reversal of 220920541 is 145029022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220920541 - 2³ = 220920533 is a prime.

It is a super-3 number, since 3×220920541³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220920571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1056 + ... + 21046.

It is an arithmetic number, because the mean of its divisors is an integer number (28368648).

Almost surely, 2^220920541 is an apocalyptic number.

It is an amenable number.

220920541 is a deficient number, since it is larger than the sum of its proper divisors (6028643).

220920541 is a wasteful number, since it uses less digits than its factorization.

220920541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20291.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 220920541 is about 14863.3960116792. The cubic root of 220920541 is about 604.5218916949.

Adding to 220920541 its reverse (145029022), we get a palindrome (365949563).

The spelling of 220920541 in words is "two hundred twenty million, nine hundred twenty thousand, five hundred forty-one".