133909111607 has 4 divisors (see below), whose sum is σ = 133913903640. Its totient is φ = 133904319576.

The previous prime is 133909111577. The next prime is 133909111621. The reversal of 133909111607 is 706111909331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133909111607 - 2¹⁸ = 133908849463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133909111667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2353853 + ... + 2410070.

It is an arithmetic number, because the mean of its divisors is an integer number (33478475910).

Almost surely, 2^133909111607 is an apocalyptic number.

133909111607 is a deficient number, since it is larger than the sum of its proper divisors (4792033).

133909111607 is an equidigital number, since it uses as much as digits as its factorization.

133909111607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4792032.

The product of its (nonzero) digits is 30618, while the sum is 41.

The spelling of 133909111607 in words is "one hundred thirty-three billion, nine hundred nine million, one hundred eleven thousand, six hundred seven".