133333748 has 24 divisors (see below), whose sum is σ = 236847240. Its totient is φ = 65669120.

The previous prime is 133333727. The next prime is 133333777. The reversal of 133333748 is 847333331.

133333748 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8832784 + 124500964 = 2972^2 + 11158^2 .

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, 125138 + ... + 126198.

It is an arithmetic number, because the mean of its divisors is an integer number (9868635).

Almost surely, 2^133333748 is an apocalyptic number.

It is an amenable number.

133333748 is a deficient number, since it is larger than the sum of its proper divisors (103513492).

133333748 is a wasteful number, since it uses less digits than its factorization.

133333748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507 (or 1505 counting only the distinct ones).

The product of its digits is 54432, while the sum is 35.

The square root of 133333748 is about 11547.0233393719. The cubic root of 133333748 is about 510.8734845334.

The spelling of 133333748 in words is "one hundred thirty-three million, three hundred thirty-three thousand, seven hundred forty-eight".