133940210 has 16 divisors (see below), whose sum is σ = 241327296. Its totient is φ = 53523888.

The previous prime is 133940203. The next prime is 133940231. The reversal of 133940210 is 12049331.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5267 + ... + 17193.

It is an arithmetic number, because the mean of its divisors is an integer number (15082956).

Almost surely, 2^133940210 is an apocalyptic number.

133940210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133940210 is a deficient number, since it is larger than the sum of its proper divisors (107387086).

133940210 is a wasteful number, since it uses less digits than its factorization.

133940210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13057.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 133940210 is about 11573.2540799898. The cubic root of 133940210 is about 511.6468741202.

Adding to 133940210 its reverse (12049331), we get a palindrome (145989541).

The spelling of 133940210 in words is "one hundred thirty-three million, nine hundred forty thousand, two hundred ten".