133316347 has 2 divisors, whose sum is σ = 133316348. Its totient is φ = 133316346.

The previous prime is 133316327. The next prime is 133316353. The reversal of 133316347 is 743613331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133316347 is a prime.

It is not a weakly prime, because it can be changed into another prime (133316317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66658173 + 66658174.

It is an arithmetic number, because the mean of its divisors is an integer number (66658174).

Almost surely, 2^133316347 is an apocalyptic number.

133316347 is a deficient number, since it is larger than the sum of its proper divisors (1).

133316347 is an equidigital number, since it uses as much as digits as its factorization.

133316347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 31.

The square root of 133316347 is about 11546.2698305557. The cubic root of 133316347 is about 510.8512593619.

Adding to 133316347 its reverse (743613331), we get a palindrome (876929678).

The spelling of 133316347 in words is "one hundred thirty-three million, three hundred sixteen thousand, three hundred forty-seven".