133735541 has 2 divisors, whose sum is σ = 133735542. Its totient is φ = 133735540.

The previous prime is 133735523. The next prime is 133735543. The reversal of 133735541 is 145537331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126472516 + 7263025 = 11246^2 + 2695^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133735541 is a prime.

Together with 133735543, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 133735498 and 133735507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133735543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66867770 + 66867771.

It is an arithmetic number, because the mean of its divisors is an integer number (66867771).

Almost surely, 2^133735541 is an apocalyptic number.

It is an amenable number.

133735541 is a deficient number, since it is larger than the sum of its proper divisors (1).

133735541 is an equidigital number, since it uses as much as digits as its factorization.

133735541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 32.

The square root of 133735541 is about 11564.4083722428. The cubic root of 133735541 is about 511.3861318131.

The spelling of 133735541 in words is "one hundred thirty-three million, seven hundred thirty-five thousand, five hundred forty-one".