220961541 has 8 divisors (see below), whose sum is σ = 296380224. Its totient is φ = 146425280.

The previous prime is 220961539. The next prime is 220961561. The reversal of 220961541 is 145169022.

220961541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 220961541 - 2¹ = 220961539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220961499 and 220961508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220961561) 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, 220020 + ... + 221021.

It is an arithmetic number, because the mean of its divisors is an integer number (37047528).

Almost surely, 2^220961541 is an apocalyptic number.

It is an amenable number.

220961541 is a deficient number, since it is larger than the sum of its proper divisors (75418683).

220961541 is a wasteful number, since it uses less digits than its factorization.

220961541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441211.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 220961541 is about 14864.7751748891. The cubic root of 220961541 is about 604.5592865343.

The spelling of 220961541 in words is "two hundred twenty million, nine hundred sixty-one thousand, five hundred forty-one".