133541612 has 6 divisors (see below), whose sum is σ = 233697828. Its totient is φ = 66770804.

The previous prime is 133541593. The next prime is 133541651. The reversal of 133541612 is 216145331.

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 as a sum of consecutive naturals, namely, 16692698 + ... + 16692705.

It is an arithmetic number, because the mean of its divisors is an integer number (38949638).

Almost surely, 2^133541612 is an apocalyptic number.

It is an amenable number.

133541612 is a deficient number, since it is larger than the sum of its proper divisors (100156216).

133541612 is a wasteful number, since it uses less digits than its factorization.

133541612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33385407 (or 33385405 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 133541612 is about 11556.0205953434. The cubic root of 133541612 is about 511.1388263834.

Adding to 133541612 its reverse (216145331), we get a palindrome (349686943).

The spelling of 133541612 in words is "one hundred thirty-three million, five hundred forty-one thousand, six hundred twelve".