133025641 has 12 divisors (see below), whose sum is σ = 155865360. Its totient is φ = 113195880.

The previous prime is 133025621. The next prime is 133025647. The reversal of 133025641 is 146520331.

It is not a de Polignac number, because 133025641 - 2⁵ = 133025609 is a prime.

133025641 is a modest number, since divided by 25641 gives 133 as remainder.

It is not an unprimeable number, because it can be changed into a prime (133025647) 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 11 ways as a sum of consecutive naturals, for example, 2955 + ... + 16576.

It is an arithmetic number, because the mean of its divisors is an integer number (12988780).

Almost surely, 2^133025641 is an apocalyptic number.

It is an amenable number.

133025641 is a deficient number, since it is larger than the sum of its proper divisors (22839719).

133025641 is a wasteful number, since it uses less digits than its factorization.

133025641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19684 (or 19677 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 133025641 is about 11533.6742194324. The cubic root of 133025641 is about 510.4796730203.

Adding to 133025641 its reverse (146520331), we get a palindrome (279545972).

The spelling of 133025641 in words is "one hundred thirty-three million, twenty-five thousand, six hundred forty-one".