133515143 has 2 divisors, whose sum is σ = 133515144. Its totient is φ = 133515142.

The previous prime is 133515097. The next prime is 133515157. The reversal of 133515143 is 341515331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133515143 - 2⁶ = 133515079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133515163) 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, 66757571 + 66757572.

It is an arithmetic number, because the mean of its divisors is an integer number (66757572).

Almost surely, 2^133515143 is an apocalyptic number.

133515143 is a deficient number, since it is larger than the sum of its proper divisors (1).

133515143 is an equidigital number, since it uses as much as digits as its factorization.

133515143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 26.

The square root of 133515143 is about 11554.8752914084. The cubic root of 133515143 is about 511.1050535707.

The spelling of 133515143 in words is "one hundred thirty-three million, five hundred fifteen thousand, one hundred forty-three".