133333787 has 2 divisors, whose sum is σ = 133333788. Its totient is φ = 133333786.

The previous prime is 133333777. The next prime is 133333789. The reversal of 133333787 is 787333331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133333787 - 2¹⁶ = 133268251 is a prime.

It is a super-2 number, since 2×133333787² = 35555797511522738, which contains 22 as substring.

Together with 133333789, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133333787.

It is not a weakly prime, because it can be changed into another prime (133333789) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66666893 + 66666894.

It is an arithmetic number, because the mean of its divisors is an integer number (66666894).

Almost surely, 2^133333787 is an apocalyptic number.

133333787 is a deficient number, since it is larger than the sum of its proper divisors (1).

133333787 is an equidigital number, since it uses as much as digits as its factorization.

133333787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256, while the sum is 38.

The square root of 133333787 is about 11547.0250281187. The cubic root of 133333787 is about 510.8735343435.

The spelling of 133333787 in words is "one hundred thirty-three million, three hundred thirty-three thousand, seven hundred eighty-seven".