133235146 has 16 divisors (see below), whose sum is σ = 218207520. Its totient is φ = 60509680.

The previous prime is 133235131. The next prime is 133235189. The reversal of 133235146 is 641532331.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 37620 + ... + 41008.

It is an arithmetic number, because the mean of its divisors is an integer number (13637970).

Almost surely, 2^133235146 is an apocalyptic number.

133235146 is a deficient number, since it is larger than the sum of its proper divisors (84972374).

133235146 is a wasteful number, since it uses less digits than its factorization.

133235146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5189.

The product of its digits is 6480, while the sum is 28.

The square root of 133235146 is about 11542.7529645228. The cubic root of 133235146 is about 510.7475210011.

Adding to 133235146 its reverse (641532331), we get a palindrome (774767477).

The spelling of 133235146 in words is "one hundred thirty-three million, two hundred thirty-five thousand, one hundred forty-six".