133304140 has 36 divisors (see below), whose sum is σ = 297387216. Its totient is φ = 50182912.

The previous prime is 133304137. The next prime is 133304167. The reversal of 133304140 is 41403331.

It is a super-2 number, since 2×133304140² = 35539987482279200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5752 + ... + 17311.

It is an arithmetic number, because the mean of its divisors is an integer number (8260756).

Almost surely, 2^133304140 is an apocalyptic number.

133304140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133304140 is an abundant number, since it is smaller than the sum of its proper divisors (164083076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133304140 is a wasteful number, since it uses less digits than its factorization.

133304140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23106 (or 23087 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 133304140 is about 11545.7412061764. The cubic root of 133304140 is about 510.8356669963.

Adding to 133304140 its reverse (41403331), we get a palindrome (174707471).

The spelling of 133304140 in words is "one hundred thirty-three million, three hundred four thousand, one hundred forty".