133654061 has 2 divisors, whose sum is σ = 133654062. Its totient is φ = 133654060.

The previous prime is 133654033. The next prime is 133654063. The reversal of 133654061 is 160456331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71149225 + 62504836 = 8435^2 + 7906^2 .

It is a cyclic number.

It is not a de Polignac number, because 133654061 - 2²⁶ = 66545197 is a prime.

It is a Sophie Germain prime.

Together with 133654063, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133654063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66827030 + 66827031.

It is an arithmetic number, because the mean of its divisors is an integer number (66827031).

Almost surely, 2^133654061 is an apocalyptic number.

It is an amenable number.

133654061 is a deficient number, since it is larger than the sum of its proper divisors (1).

133654061 is an equidigital number, since it uses as much as digits as its factorization.

133654061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 133654061 is about 11560.8849574762. The cubic root of 133654061 is about 511.2822546469.

The spelling of 133654061 in words is "one hundred thirty-three million, six hundred fifty-four thousand, sixty-one".