220146343 has 4 divisors (see below), whose sum is σ = 225515808. Its totient is φ = 214776880.

The previous prime is 220146341. The next prime is 220146347. The reversal of 220146343 is 343641022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220146343 - 2¹ = 220146341 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 (220146341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2684671 + ... + 2684752.

It is an arithmetic number, because the mean of its divisors is an integer number (56378952).

Almost surely, 2^220146343 is an apocalyptic number.

220146343 is a deficient number, since it is larger than the sum of its proper divisors (5369465).

220146343 is an equidigital number, since it uses as much as digits as its factorization.

220146343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5369464.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 220146343 is about 14837.3293755986. The cubic root of 220146343 is about 603.8148993128.

Adding to 220146343 its reverse (343641022), we get a palindrome (563787365).

The spelling of 220146343 in words is "two hundred twenty million, one hundred forty-six thousand, three hundred forty-three".