133455241 has 2 divisors, whose sum is σ = 133455242. Its totient is φ = 133455240.

The previous prime is 133455199. The next prime is 133455247. The reversal of 133455241 is 142554331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130051216 + 3404025 = 11404^2 + 1845^2 .

It is a cyclic number.

It is not a de Polignac number, because 133455241 - 2⁹ = 133454729 is a prime.

It is not a weakly prime, because it can be changed into another prime (133455247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66727620 + 66727621.

It is an arithmetic number, because the mean of its divisors is an integer number (66727621).

Almost surely, 2^133455241 is an apocalyptic number.

It is an amenable number.

133455241 is a deficient number, since it is larger than the sum of its proper divisors (1).

133455241 is an equidigital number, since it uses as much as digits as its factorization.

133455241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 28.

The square root of 133455241 is about 11552.2829345545. The cubic root of 133455241 is about 511.0286058258.

The spelling of 133455241 in words is "one hundred thirty-three million, four hundred fifty-five thousand, two hundred forty-one".