133725187438427 has 4 divisors (see below), whose sum is σ = 144011740318320. Its totient is φ = 123438634558536.

The previous prime is 133725187438379. The next prime is 133725187438429. The reversal of 133725187438427 is 724834781527331.

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 133725187438427 - 2⁴² = 129327140927323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133725187438429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5143276439927 + ... + 5143276439952.

It is an arithmetic number, because the mean of its divisors is an integer number (36002935079580).

Almost surely, 2^{133725187438427} is an apocalyptic number.

133725187438427 is a deficient number, since it is larger than the sum of its proper divisors (10286552879893).

133725187438427 is a wasteful number, since it uses less digits than its factorization.

133725187438427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10286552879892.

The product of its digits is 189665280, while the sum is 65.

The spelling of 133725187438427 in words is "one hundred thirty-three trillion, seven hundred twenty-five billion, one hundred eighty-seven million, four hundred thirty-eight thousand, four hundred twenty-seven".