133542911 has 2 divisors, whose sum is σ = 133542912. Its totient is φ = 133542910.

The previous prime is 133542833. The next prime is 133542917. The reversal of 133542911 is 119245331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133542911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133542917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66771455 + 66771456.

It is an arithmetic number, because the mean of its divisors is an integer number (66771456).

Almost surely, 2^133542911 is an apocalyptic number.

133542911 is a deficient number, since it is larger than the sum of its proper divisors (1).

133542911 is an equidigital number, since it uses as much as digits as its factorization.

133542911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 29.

The square root of 133542911 is about 11556.0767996756. The cubic root of 133542911 is about 511.1404837125.

The spelling of 133542911 in words is "one hundred thirty-three million, five hundred forty-two thousand, nine hundred eleven".