133810827 has 4 divisors (see below), whose sum is σ = 178414440. Its totient is φ = 89207216.

The previous prime is 133810823. The next prime is 133810841. The reversal of 133810827 is 728018331.

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 133810827 - 2² = 133810823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133810823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22301802 + ... + 22301807.

It is an arithmetic number, because the mean of its divisors is an integer number (44603610).

Almost surely, 2^133810827 is an apocalyptic number.

133810827 is a deficient number, since it is larger than the sum of its proper divisors (44603613).

133810827 is an equidigital number, since it uses as much as digits as its factorization.

133810827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44603612.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 133810827 is about 11567.6629878295. The cubic root of 133810827 is about 511.4820748805.

The spelling of 133810827 in words is "one hundred thirty-three million, eight hundred ten thousand, eight hundred twenty-seven".