133772789 has 2 divisors, whose sum is σ = 133772790. Its totient is φ = 133772788.

The previous prime is 133772777. The next prime is 133772801. The reversal of 133772789 is 987277331.

It is a balanced prime because it is at equal distance from previous prime (133772777) and next prime (133772801).

It can be written as a sum of positive squares in only one way, i.e., 133217764 + 555025 = 11542^2 + 745^2 .

It is a cyclic number.

It is not a de Polignac number, because 133772789 - 2⁴ = 133772773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133772729) 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 as a sum of consecutive naturals, namely, 66886394 + 66886395.

It is an arithmetic number, because the mean of its divisors is an integer number (66886395).

Almost surely, 2^133772789 is an apocalyptic number.

It is an amenable number.

133772789 is a deficient number, since it is larger than the sum of its proper divisors (1).

133772789 is an equidigital number, since it uses as much as digits as its factorization.

133772789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 444528, while the sum is 47.

The square root of 133772789 is about 11566.0187186430. The cubic root of 133772789 is about 511.4336044654.

The spelling of 133772789 in words is "one hundred thirty-three million, seven hundred seventy-two thousand, seven hundred eighty-nine".