146642228 has 12 divisors (see below), whose sum is σ = 270130560. Its totient is φ = 69462072.

The previous prime is 146642219. The next prime is 146642261. The reversal of 146642228 is 822246641.

146642228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 964676 + ... + 964827.

It is an arithmetic number, because the mean of its divisors is an integer number (22510880).

Almost surely, 2^146642228 is an apocalyptic number.

It is an amenable number.

146642228 is a deficient number, since it is larger than the sum of its proper divisors (123488332).

146642228 is a wasteful number, since it uses less digits than its factorization.

146642228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929526 (or 1929524 counting only the distinct ones).

The product of its digits is 36864, while the sum is 35.

The square root of 146642228 is about 12109.5923961131. The cubic root of 146642228 is about 527.3347001960.

Adding to 146642228 its reverse (822246641), we get a palindrome (968888869).

The spelling of 146642228 in words is "one hundred forty-six million, six hundred forty-two thousand, two hundred twenty-eight".