133054261 has 2 divisors, whose sum is σ = 133054262. Its totient is φ = 133054260.

The previous prime is 133054231. The next prime is 133054301. The reversal of 133054261 is 162450331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89889361 + 43164900 = 9481^2 + 6570^2 .

It is a cyclic number.

It is not a de Polignac number, because 133054261 - 2¹⁹ = 132529973 is a prime.

It is a super-2 number, since 2×133054261² = 35406872740512242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133054231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66527130 + 66527131.

It is an arithmetic number, because the mean of its divisors is an integer number (66527131).

Almost surely, 2^133054261 is an apocalyptic number.

It is an amenable number.

133054261 is a deficient number, since it is larger than the sum of its proper divisors (1).

133054261 is an equidigital number, since it uses as much as digits as its factorization.

133054261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 133054261 is about 11534.9148674795. The cubic root of 133054261 is about 510.5162796988.

The spelling of 133054261 in words is "one hundred thirty-three million, fifty-four thousand, two hundred sixty-one".