133027289 has 4 divisors (see below), whose sum is σ = 133165824. Its totient is φ = 132888756.

The previous prime is 133027277. The next prime is 133027291. The reversal of 133027289 is 982720331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 982720331 = 1483 ⋅662657.

It is a cyclic number.

It is not a de Polignac number, because 133027289 - 2⁸ = 133027033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133027229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67817 + ... + 69750.

It is an arithmetic number, because the mean of its divisors is an integer number (33291456).

Almost surely, 2^133027289 is an apocalyptic number.

It is an amenable number.

133027289 is a deficient number, since it is larger than the sum of its proper divisors (138535).

133027289 is an equidigital number, since it uses as much as digits as its factorization.

133027289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138534.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 133027289 is about 11533.7456621862. The cubic root of 133027289 is about 510.4817810526.

The spelling of 133027289 in words is "one hundred thirty-three million, twenty-seven thousand, two hundred eighty-nine".