133139927 has 4 divisors (see below), whose sum is σ = 133184040. Its totient is φ = 133095816.

The previous prime is 133139891. The next prime is 133139953. The reversal of 133139927 is 729931331.

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 133139927 - 2⁶ = 133139863 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 (133139977) 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, 17168 + ... + 23685.

It is an arithmetic number, because the mean of its divisors is an integer number (33296010).

Almost surely, 2^133139927 is an apocalyptic number.

133139927 is a deficient number, since it is larger than the sum of its proper divisors (44113).

133139927 is an equidigital number, since it uses as much as digits as its factorization.

133139927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44112.

The product of its digits is 30618, while the sum is 38.

The square root of 133139927 is about 11538.6276047024. The cubic root of 133139927 is about 510.6258202344.

The spelling of 133139927 in words is "one hundred thirty-three million, one hundred thirty-nine thousand, nine hundred twenty-seven".