220700146 has 8 divisors (see below), whose sum is σ = 331568604. Its totient is φ = 110177280.

The previous prime is 220700119. The next prime is 220700147. The reversal of 220700146 is 641007022.

It can be written as a sum of positive squares in 2 ways, for example, as 205606921 + 15093225 = 14339^2 + 3885^2 .

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

It is not an unprimeable number, because it can be changed into a prime (220700147) 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, 84795 + ... + 87358.

Almost surely, 2^220700146 is an apocalyptic number.

220700146 is a deficient number, since it is larger than the sum of its proper divisors (110868458).

220700146 is a wasteful number, since it uses less digits than its factorization.

220700146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172796.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 220700146 is about 14855.9801426900. The cubic root of 220700146 is about 604.3207968701.

Adding to 220700146 its reverse (641007022), we get a palindrome (861707168).

The spelling of 220700146 in words is "two hundred twenty million, seven hundred thousand, one hundred forty-six".