133345543 has 2 divisors, whose sum is σ = 133345544. Its totient is φ = 133345542.

The previous prime is 133345519. The next prime is 133345547. The reversal of 133345543 is 345543331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133345543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133345547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66672771 + 66672772.

It is an arithmetic number, because the mean of its divisors is an integer number (66672772).

Almost surely, 2^133345543 is an apocalyptic number.

133345543 is a deficient number, since it is larger than the sum of its proper divisors (1).

133345543 is an equidigital number, since it uses as much as digits as its factorization.

133345543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 31.

The square root of 133345543 is about 11547.5340657649. The cubic root of 133345543 is about 510.8885484243. Note that the first 3 decimals are identical.

Adding to 133345543 its reverse (345543331), we get a palindrome (478888874).

The spelling of 133345543 in words is "one hundred thirty-three million, three hundred forty-five thousand, five hundred forty-three".