133304146 has 4 divisors (see below), whose sum is σ = 199956222. Its totient is φ = 66652072.

The previous prime is 133304137. The next prime is 133304167. The reversal of 133304146 is 641403331.

It is a happy number.

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., 132503121 + 801025 = 11511^2 + 895^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 133304146.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33326035 + ... + 33326038.

Almost surely, 2^133304146 is an apocalyptic number.

133304146 is a deficient number, since it is larger than the sum of its proper divisors (66652076).

133304146 is an equidigital number, since it uses as much as digits as its factorization.

133304146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66652075.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 133304146 is about 11545.7414660125. The cubic root of 133304146 is about 510.8356746606.

Adding to 133304146 its reverse (641403331), we get a palindrome (774707477).

The spelling of 133304146 in words is "one hundred thirty-three million, three hundred four thousand, one hundred forty-six".