133840850 has 48 divisors (see below), whose sum is σ = 292481280. Its totient is φ = 44923200.

The previous prime is 133840849. The next prime is 133840859. The reversal of 133840850 is 58048331.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (133840859) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2210 + ... + 16509.

It is an arithmetic number, because the mean of its divisors is an integer number (6093360).

Almost surely, 2^133840850 is an apocalyptic number.

133840850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133840850 is an abundant number, since it is smaller than the sum of its proper divisors (158640430).

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

133840850 is a wasteful number, since it uses less digits than its factorization.

133840850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18755 (or 18750 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 133840850 is about 11568.9606274721. The cubic root of 133840850 is about 511.5203255919.

The spelling of 133840850 in words is "one hundred thirty-three million, eight hundred forty thousand, eight hundred fifty".