133388827 has 24 divisors (see below), whose sum is σ = 159139728. Its totient is φ = 111745920.

The previous prime is 133388821. The next prime is 133388837. The reversal of 133388827 is 728883331.

It is not a de Polignac number, because 133388827 - 2³ = 133388819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133388821) 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 23 ways as a sum of consecutive naturals, for example, 224643 + ... + 225235.

It is an arithmetic number, because the mean of its divisors is an integer number (6630822).

Almost surely, 2^133388827 is an apocalyptic number.

133388827 is a deficient number, since it is larger than the sum of its proper divisors (25750901).

133388827 is an equidigital number, since it uses as much as digits as its factorization.

133388827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 617 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 133388827 is about 11549.4080800706. The cubic root of 133388827 is about 510.9438206321.

The spelling of 133388827 in words is "one hundred thirty-three million, three hundred eighty-eight thousand, eight hundred twenty-seven".