133654121 has 2 divisors, whose sum is σ = 133654122. Its totient is φ = 133654120.

The previous prime is 133654099. The next prime is 133654133. The reversal of 133654121 is 121456331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82101721 + 51552400 = 9061^2 + 7180^2 .

It is a cyclic number.

It is not a de Polignac number, because 133654121 - 2²² = 129459817 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (133654141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66827060 + 66827061.

It is an arithmetic number, because the mean of its divisors is an integer number (66827061).

Almost surely, 2^133654121 is an apocalyptic number.

It is an amenable number.

133654121 is a deficient number, since it is larger than the sum of its proper divisors (1).

133654121 is an equidigital number, since it uses as much as digits as its factorization.

133654121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 133654121 is about 11560.8875524330. The cubic root of 133654121 is about 511.2823311552.

The spelling of 133654121 in words is "one hundred thirty-three million, six hundred fifty-four thousand, one hundred twenty-one".