133711387 has 2 divisors, whose sum is σ = 133711388. Its totient is φ = 133711386.

The previous prime is 133711363. The next prime is 133711393. The reversal of 133711387 is 783117331.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (783117331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133711387 - 2¹¹ = 133709339 is a prime.

It is not a weakly prime, because it can be changed into another prime (133712387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66855693 + 66855694.

It is an arithmetic number, because the mean of its divisors is an integer number (66855694).

Almost surely, 2^133711387 is an apocalyptic number.

133711387 is a deficient number, since it is larger than the sum of its proper divisors (1).

133711387 is an equidigital number, since it uses as much as digits as its factorization.

133711387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 34.

The square root of 133711387 is about 11563.3640001515. The cubic root of 133711387 is about 511.3553427792.

The spelling of 133711387 in words is "one hundred thirty-three million, seven hundred eleven thousand, three hundred eighty-seven".