220146541 has 4 divisors (see below), whose sum is σ = 225266272. Its totient is φ = 215026812.

The previous prime is 220146529. The next prime is 220146557. The reversal of 220146541 is 145641022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220146541 - 2¹¹ = 220144493 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 (220146571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2559801 + ... + 2559886.

It is an arithmetic number, because the mean of its divisors is an integer number (56316568).

Almost surely, 2^220146541 is an apocalyptic number.

It is an amenable number.

220146541 is a deficient number, since it is larger than the sum of its proper divisors (5119731).

220146541 is an equidigital number, since it uses as much as digits as its factorization.

220146541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5119730.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 220146541 is about 14837.3360479569. The cubic root of 220146541 is about 603.8150803368.

Adding to 220146541 its reverse (145641022), we get a palindrome (365787563).

The spelling of 220146541 in words is "two hundred twenty million, one hundred forty-six thousand, five hundred forty-one".