133413923 has 2 divisors, whose sum is σ = 133413924. Its totient is φ = 133413922.

The previous prime is 133413901. The next prime is 133413979. The reversal of 133413923 is 329314331.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (329314331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133413923 - 2⁶ = 133413859 is a prime.

It is not a weakly prime, because it can be changed into another prime (133413023) 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, 66706961 + 66706962.

It is an arithmetic number, because the mean of its divisors is an integer number (66706962).

Almost surely, 2^133413923 is an apocalyptic number.

133413923 is a deficient number, since it is larger than the sum of its proper divisors (1).

133413923 is an equidigital number, since it uses as much as digits as its factorization.

133413923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 29.

The square root of 133413923 is about 11550.4944915791. The cubic root of 133413923 is about 510.9758619016.

The spelling of 133413923 in words is "one hundred thirty-three million, four hundred thirteen thousand, nine hundred twenty-three".