133481750 has 16 divisors (see below), whose sum is σ = 249878304. Its totient is φ = 53392600.

The previous prime is 133481743. The next prime is 133481767. The reversal of 133481750 is 57184331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266714 + ... + 267213.

It is an arithmetic number, because the mean of its divisors is an integer number (15617394).

Almost surely, 2^133481750 is an apocalyptic number.

133481750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133481750 is a deficient number, since it is larger than the sum of its proper divisors (116396554).

133481750 is an equidigital number, since it uses as much as digits as its factorization.

133481750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533944 (or 533934 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 133481750 is about 11553.4302265604. The cubic root of 133481750 is about 511.0624397923.

The spelling of 133481750 in words is "one hundred thirty-three million, four hundred eighty-one thousand, seven hundred fifty".