133001241 has 4 divisors (see below), whose sum is σ = 177334992. Its totient is φ = 88667492.

The previous prime is 133001237. The next prime is 133001263. The reversal of 133001241 is 142100331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133001241 - 2² = 133001237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133001241.

It is not an unprimeable number, because it can be changed into a prime (133001291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22166871 + ... + 22166876.

It is an arithmetic number, because the mean of its divisors is an integer number (44333748).

Almost surely, 2^133001241 is an apocalyptic number.

It is an amenable number.

133001241 is a deficient number, since it is larger than the sum of its proper divisors (44333751).

133001241 is an equidigital number, since it uses as much as digits as its factorization.

133001241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44333750.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 133001241 is about 11532.6163987189. The cubic root of 133001241 is about 510.4484598257.

Adding to 133001241 its reverse (142100331), we get a palindrome (275101572).

It can be divided in two parts, 13300 and 1241, that added together give a palindrome (14541).

The spelling of 133001241 in words is "one hundred thirty-three million, one thousand, two hundred forty-one".