133448228 has 12 divisors (see below), whose sum is σ = 238503552. Its totient is φ = 65304360.

The previous prime is 133448137. The next prime is 133448243. The reversal of 133448228 is 822844331.

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, 354728 + ... + 355103.

It is an arithmetic number, because the mean of its divisors is an integer number (19875296).

Almost surely, 2^133448228 is an apocalyptic number.

It is an amenable number.

133448228 is a deficient number, since it is larger than the sum of its proper divisors (105055324).

133448228 is a wasteful number, since it uses less digits than its factorization.

133448228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709882 (or 709880 counting only the distinct ones).

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

The square root of 133448228 is about 11551.9793974886. The cubic root of 133448228 is about 511.0196542443.

The spelling of 133448228 in words is "one hundred thirty-three million, four hundred forty-eight thousand, two hundred twenty-eight".