133085724 has 24 divisors (see below), whose sum is σ = 328800528. Its totient is φ = 41752320.

The previous prime is 133085723. The next prime is 133085749. The reversal of 133085724 is 427580331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133085723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325987 + ... + 326394.

It is an arithmetic number, because the mean of its divisors is an integer number (13700022).

Almost surely, 2^133085724 is an apocalyptic number.

It is an amenable number.

133085724 is an abundant number, since it is smaller than the sum of its proper divisors (195714804).

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

133085724 is a wasteful number, since it uses less digits than its factorization.

133085724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652405 (or 652403 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 133085724 is about 11536.2786027384. The cubic root of 133085724 is about 510.5565166860.

The spelling of 133085724 in words is "one hundred thirty-three million, eighty-five thousand, seven hundred twenty-four".