133340723 has 2 divisors, whose sum is σ = 133340724. Its totient is φ = 133340722.

The previous prime is 133340719. The next prime is 133340747. The reversal of 133340723 is 327043331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133340723 - 2² = 133340719 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133340692 and 133340701.

It is not a weakly prime, because it can be changed into another prime (133340783) 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 as a sum of consecutive naturals, namely, 66670361 + 66670362.

It is an arithmetic number, because the mean of its divisors is an integer number (66670362).

Almost surely, 2^133340723 is an apocalyptic number.

133340723 is a deficient number, since it is larger than the sum of its proper divisors (1).

133340723 is an equidigital number, since it uses as much as digits as its factorization.

133340723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 26.

The square root of 133340723 is about 11547.3253613120. The cubic root of 133340723 is about 510.8823927068.

The spelling of 133340723 in words is "one hundred thirty-three million, three hundred forty thousand, seven hundred twenty-three".