220764146 has 4 divisors (see below), whose sum is σ = 331146222. Its totient is φ = 110382072.

The previous prime is 220764139. The next prime is 220764151. The reversal of 220764146 is 641467022.

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

It can be written as a sum of positive squares in only one way, i.e., 218005225 + 2758921 = 14765^2 + 1661^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55191035 + ... + 55191038.

Almost surely, 2^220764146 is an apocalyptic number.

220764146 is a deficient number, since it is larger than the sum of its proper divisors (110382076).

220764146 is a wasteful number, since it uses less digits than its factorization.

220764146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110382075.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 220764146 is about 14858.1340012802. The cubic root of 220764146 is about 604.3792061247.

The spelling of 220764146 in words is "two hundred twenty million, seven hundred sixty-four thousand, one hundred forty-six".