133506127 has 4 divisors (see below), whose sum is σ = 136762416. Its totient is φ = 130249840.

The previous prime is 133506071. The next prime is 133506137. The reversal of 133506127 is 721605331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 721605331 = 103 ⋅7005877.

It is a cyclic number.

It is not a de Polignac number, because 133506127 - 2¹⁵ = 133473359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133506095 and 133506104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133506137) 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, 1628083 + ... + 1628164.

It is an arithmetic number, because the mean of its divisors is an integer number (34190604).

Almost surely, 2^133506127 is an apocalyptic number.

133506127 is a deficient number, since it is larger than the sum of its proper divisors (3256289).

133506127 is an equidigital number, since it uses as much as digits as its factorization.

133506127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3256288.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 133506127 is about 11554.4851464702. The cubic root of 133506127 is about 511.0935486912.

The spelling of 133506127 in words is "one hundred thirty-three million, five hundred six thousand, one hundred twenty-seven".