133525443 has 4 divisors (see below), whose sum is σ = 178033928. Its totient is φ = 89016960.

The previous prime is 133525409. The next prime is 133525453. The reversal of 133525443 is 344525331.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 133525443 - 2¹⁴ = 133509059 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133525443.

It is not an unprimeable number, because it can be changed into a prime (133525453) 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 3 ways as a sum of consecutive naturals, for example, 22254238 + ... + 22254243.

It is an arithmetic number, because the mean of its divisors is an integer number (44508482).

Almost surely, 2^133525443 is an apocalyptic number.

133525443 is a deficient number, since it is larger than the sum of its proper divisors (44508485).

133525443 is an equidigital number, since it uses as much as digits as its factorization.

133525443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44508484.

The product of its digits is 21600, while the sum is 30.

The square root of 133525443 is about 11555.3209821277. The cubic root of 133525443 is about 511.1181962663.

The spelling of 133525443 in words is "one hundred thirty-three million, five hundred twenty-five thousand, four hundred forty-three".