133131343 has 2 divisors, whose sum is σ = 133131344. Its totient is φ = 133131342.

The previous prime is 133131293. The next prime is 133131367. The reversal of 133131343 is 343131331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133131343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133131443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66565671 + 66565672.

It is an arithmetic number, because the mean of its divisors is an integer number (66565672).

Almost surely, 2^133131343 is an apocalyptic number.

133131343 is a deficient number, since it is larger than the sum of its proper divisors (1).

133131343 is an equidigital number, since it uses as much as digits as its factorization.

133131343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 22.

The square root of 133131343 is about 11538.2556307269. The cubic root of 133131343 is about 510.6148460502.

Adding to 133131343 its reverse (343131331), we get a palindrome (476262674).

The spelling of 133131343 in words is "one hundred thirty-three million, one hundred thirty-one thousand, three hundred forty-three".