133541438 has 8 divisors (see below), whose sum is σ = 201419400. Its totient is φ = 66401640.

The previous prime is 133541417. The next prime is 133541449. The reversal of 133541438 is 834145331.

133541438 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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, 184088 + ... + 184811.

It is an arithmetic number, because the mean of its divisors is an integer number (25177425).

Almost surely, 2^133541438 is an apocalyptic number.

133541438 is a deficient number, since it is larger than the sum of its proper divisors (67877962).

133541438 is a wasteful number, since it uses less digits than its factorization.

133541438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369082.

The product of its digits is 17280, while the sum is 32.

The square root of 133541438 is about 11556.0130667977. The cubic root of 133541438 is about 511.1386043847.

Adding to 133541438 its reverse (834145331), we get a palindrome (967686769).

The spelling of 133541438 in words is "one hundred thirty-three million, five hundred forty-one thousand, four hundred thirty-eight".