224145946 has 4 divisors (see below), whose sum is σ = 336218922. Its totient is φ = 112072972.

The previous prime is 224145941. The next prime is 224145947. The reversal of 224145946 is 649541422.

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., 118570321 + 105575625 = 10889^2 + 10275^2 .

It is not an unprimeable number, because it can be changed into a prime (224145941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56036485 + ... + 56036488.

Almost surely, 2^224145946 is an apocalyptic number.

224145946 is a deficient number, since it is larger than the sum of its proper divisors (112072976).

224145946 is a wasteful number, since it uses less digits than its factorization.

224145946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112072975.

The product of its digits is 69120, while the sum is 37.

The square root of 224145946 is about 14971.5044668196. The cubic root of 224145946 is about 607.4496639581.

The spelling of 224145946 in words is "two hundred twenty-four million, one hundred forty-five thousand, nine hundred forty-six".