133111641 has 8 divisors (see below), whose sum is σ = 191134720. Its totient is φ = 81914832.

The previous prime is 133111639. The next prime is 133111651. The reversal of 133111641 is 146111331.

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

It is not a de Polignac number, because 133111641 - 2¹ = 133111639 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133111651) 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 7 ways as a sum of consecutive naturals, for example, 1706521 + ... + 1706598.

It is an arithmetic number, because the mean of its divisors is an integer number (23891840).

Almost surely, 2^133111641 is an apocalyptic number.

It is an amenable number.

133111641 is a deficient number, since it is larger than the sum of its proper divisors (58023079).

133111641 is a wasteful number, since it uses less digits than its factorization.

133111641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3413135.

The product of its digits is 216, while the sum is 21.

The square root of 133111641 is about 11537.4018305683. The cubic root of 133111641 is about 510.5896563146.

Adding to 133111641 its reverse (146111331), we get a palindrome (279222972).

The spelling of 133111641 in words is "one hundred thirty-three million, one hundred eleven thousand, six hundred forty-one".