133444674 has 48 divisors (see below), whose sum is σ = 316910880. Its totient is φ = 40246080.

The previous prime is 133444673. The next prime is 133444691. The reversal of 133444674 is 476444331.

It is not an unprimeable number, because it can be changed into a prime (133444673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43462 + ... + 46430.

It is an arithmetic number, because the mean of its divisors is an integer number (6602310).

Almost surely, 2^133444674 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133444674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158455440).

133444674 is an abundant number, since it is smaller than the sum of its proper divisors (183466206).

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

133444674 is a wasteful number, since it uses less digits than its factorization.

133444674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215 (or 3212 counting only the distinct ones).

The product of its digits is 96768, while the sum is 36.

The square root of 133444674 is about 11551.8255700127. The cubic root of 133444674 is about 511.0151177036.

The spelling of 133444674 in words is "one hundred thirty-three million, four hundred forty-four thousand, six hundred seventy-four".