146620228 has 12 divisors (see below), whose sum is σ = 256775680. Its totient is φ = 73255752.

The previous prime is 146620219. The next prime is 146620231. The reversal of 146620228 is 822026641.

It is a self number, because there is not a number n which added to its sum of digits gives 146620228.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7188 + ... + 18571.

Almost surely, 2^146620228 is an apocalyptic number.

It is an amenable number.

146620228 is a deficient number, since it is larger than the sum of its proper divisors (110155452).

146620228 is a wasteful number, since it uses less digits than its factorization.

146620228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27186 (or 27184 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 146620228 is about 12108.6839912519. The cubic root of 146620228 is about 527.3083277480.

Adding to 146620228 its reverse (822026641), we get a palindrome (968646869).

The spelling of 146620228 in words is "one hundred forty-six million, six hundred twenty thousand, two hundred twenty-eight".